Aristotle Essays -- essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  Aristotle was born in Stagira, located in northern Greece, in 384 B.C. He died in Chalcis, on the Aegean island of Euboea, in 322 B.C. Aristotle's father had been court physician to the Macedonian king Amyntas II. Aristotle lost both of his parents when he was child, and was brought up by a friend of the family.   Ã‚  Ã‚  Ã‚  Ã‚  Aristotle wrote 170 books, 47 of which still exist more than two thousand years later. Aristotle was also a philosopher who wrote about ethics, psychology, economics, theology, politics, and rhetoric. Later inventions like the telescope and microscope would prove many of Aristotle’s theories to be incorrect, but his ideas formed the basis of modern science.   Ã‚  Ã‚  Ã‚  Ã‚  Aristotle's most successful scientific writings were those on biology. He studied over five hundred animal species and dissected nearly fifty of them. He was particularly interested in sea life and observed that the dolphin brought forth its young alive and nourished the fetus by means of a special organ called a placenta. No fish did this, but all mammals did, so Aristotle classed the dolphin with the beasts of the field rather than with the fish of the sea. His successors did not follow his lead, and it took two thousand years for biologists to catch up to Aristotle in this respect.   Ã‚  Ã‚  Ã‚  Ã‚  In physics Aristotle was far less successful than in biology. He accepted the heavenly spheres of Eudoxus and ...

Story Sharing and Female Adolescent Faith Development :: Essays Papers

Story Sharing and Female Adolescent Faith Development Adolescence: Women in Crisis According to developmental psychologist Erik Erikson, the defining psychological crisis of adolescence is identity formation versus identity confusion (Erikson 1982). This involves defining what is most important to the individual in terms of ethics, long-term goals, and especially personal and interpersonal commitments. Erikson proposes three elements necessary for this formation: an experience of â€Å"inner sameness† or consistency between values and self-determined actions, a historical continuity of such decisions, and a community of important others who serve to validate that integrated self (1968). Ideally, self-confidence is evident for both genders during this period. However, the contrast between male and female commitments indicates that many females are not successful in forming a strong identity at this phase. To examine the varying commitments adolescents make during the identity formation crisis period, a team of adolescent psychologists interviewed hundreds of middle and high school aged people of both sexes. Each participant was asked to record a few things that were most important in their lives (i.e. family, career goals, life philosophy), then the interviewers asked them to say more about these themes. While the men mentioned subjects most pertinent to their own interests (school, political issues, and their futures), women focused mainly on interpersonal relationships. This alone may or may not indicate a gap in identity development, but the study indicated that women did not exclude talk of themselves and their lives, but rather spoke negatively about both: â€Å"Many older female subjects mentioned problems and ambivalence with regard to themselves (being uncertain and so on) and difficulties in committing themselves to the different aspects of their own personalities†(B osma 100). Why are they not committed to themselves? Perhaps they cannot not commit because they do not know to what they are committing. Neither are they committed to certain life philosophies that might inform their characters. In fact, religion was ranked one of the weakest commitments for older adolescent women. Do they honestly not care, or do they not know what to care about without the immediate feedback of others? In this light, the volatile nature of a woman’s attention to her own character may not be moodiness, then, but a deeper sense of despair at choosing to commit to something that might elicit a damaging critique from others. It is much safer to focus on something highly valued in the social world, like one’s friends, than something that could be construed as selfish, like schoolwork or faith.

Marketing and Puma Essay

This report will show the analysis about PUMA marketing strategy which the 4th footwear producer in the world and also giving advice and objective to develop marketing strategy. PUMA and its Situational Analysis To satisfy customer demand, First, PUMA must understand its internal and external situation, including the macro-factor, micro-factor, and its own capabilities. In order to understand the situation, PUMA must do SWOT analysis and PEST analysis. SWOT analysis PUMA can apply SWOT analysis to both the business unit level, the corporate level and frequently appears in marketing strategy. Strengths First, it is about PUMA brand and its power: * Its image stands for the quality, the neo-technology and the prestige. * It is very competitive brand in athletic footwear, accessory and appeal market. * It is an international company. * It got acquisition of reputable companies. Second, it is about PUMA financial power and its product: * Its financial power is very strong and the financial growth rapidly. * Its product is very diversity and it is successful on creating brand recognition. * It has long time experience in produce athletic footwear, accessory and appeal. Third, its management is marketing oriented, this is PUMA’s advantage in this business, since this is market driven. Weaknesses First, PUMA is not done much of Promotional Campaigns or advertisement. Second, PUMA’s profit dependent on footwear market heavily although it already have wide range of sports products which can cause profit loss when its market share erodes. Third, almost of PUMA’s profit come from selling into its retailers. But retail sector is price sensitive that offers a very similar experience to the consumer as well as they tend to pass the low price competitive pressure to PUMA. Opportunities First, PUMA’s products are for both fashion and unfashion customer, playing sport or not, especial the young, so it make its own opportunities, since it give customer changes to replace their products. Second, PUMA success on build-up a strong brand recognition which is cover all over the world that give it change to penetrate to disposable market [] for high value sports products like World Cup, The Olympics†¦ Threats First, PUMA’s short-life-cycles product competitive penetration plan can cost it a lot of money and give its marketing and its research and its development a heavily pressure. In addition, the serious threat may come from weakening markets. Second, buying and selling in different country with different currencies can be threat, because margins and costs are not stable for long periods. Not only PUMA but every international company must face those issues. Third, price sensitivity is a threat to PUMA, especially when the retail sector becomes competition of price. For example, there are many stores with same goods. The consumer is walking around for bester price in the same product. PEST analysis PUMA can apply PEST analysis to analyze the external macro-environment which it is affected. Political Factors There are various political factors that are affect to developing process of PUMA, especially to build strong financial to make more profit, environmental issues is one of those issues. So PUMA should focus on various issues which related to the environment. In order to keep up the developing process, PUMA should consider the international laws and local laws when being outsourcing from foreign countries that include quota and tariffs which is the most critical political factors. Like another international company, PUMA is outsourcing its production in Asia due to lower labor-cost and taxes. PUMA is selling its products in various parts of the world. So the political stability is very important because if one of those issues is happen for PUMA’s local partner that can affect overall performance of PUMA. Economic Factors In terms of stock exchange, monetary issues and so on, the economic factors, somehow, can be related to the various political factors which could affect the developing process of PUMA. Especially, the economic policies issues in Germany which is play an important role as well as the economic policies issues of the local partner. Thus, political factors have a great affect to the psychology of the customers. Due to different cultures and regulations and human resource aspect, the various employment laws in foreign countries should be considered. Social Factors There are various social factors that might affect the developing process of PUMA as well as demand or experience of the customers for one service or product. Nowadays, due to higher life-quality, people is love to playing sport a lot, so it is a big opportunities for PUMA to expand its market share. PUMA also should include some of new sports such as skateboarding, diving and extreme bike as importance segments in strategy-making Recently, there are more female-customers participates in sport, especially in US, the number of female-student who playing sports at university has increased three time and there are also more than thirty-three percent of female-students playing sports at high school. For now, female-customers participate in every sport in US. Thus, PUMA should consider the needs of female-customers in fitness shoes. Technological Factors PUMA should focuses on Research and Development activities by apply latest technologies, in terms of technological factors, especially internet-marketing like, example vital marketing or so on†¦ The maturity of technology is play an important role in terms of development because technology is non-stop develops, so PUMA should consider it. In addition, the global consumer is another important part because PUMA is run its business in various part of the world. PUMA and its Unique Selling Proposition The Unique Selling Proposition (USP) states successful advertising campaigns made unique propositions to consumers and this convinced them switch to PUMA brands. PUMA is suggested replacing its traditional business plan with its USP because USP can make a great deal to PUMA business model. USP can define PUMA business and business goals in one sentence. According to Rosser Reeves, there are three part of USP definition. 1. Each of PUMA’s advertisement must say to its consumer: â€Å"Buy our goods, and you definitely get this specific advantage†. Example: â€Å"Make Football Everywhere† (PUMA football), By using such advertisement, PUMA try to tell its consumer the benefit of buying and using its football shoes, the benefit is its shoes can be use everywhere to playing football, it can be the street, stadium and backyard†¦ and it is also new marketing strategy of PUMA. 2. PUMA’s offers must be something that other competitor cannot offer. Those offers should be unique. Example: The Puma design ethos/philosophy â€Å"PUMA is mixing fashion and sport-lifestyle in a unique way. PUMA always try to illustration sport in a creative-fashionable way, and when it comes to fashion PUMA’s always try to put its sports heritage into fashion-area†¦Ã¢â‚¬  Or â€Å"To PUMA, sport is a living-active-lifestyle, whether its customers are a traveler, an athletic or event businessman, this is a various kind of illustration of sport in modern time†¦Ã¢â‚¬  (Jochen Zeitz, CEO, Puma AG, discusses Puma’s design ethos) By doing such campaigns, PUMA is creating their new brand image that it is changing its image from product sport shoes to product mixing sport-lifestyle fitness shoes, and it is also new development strategy of PUMA. 3. PUMA’s offers must be so powerful as well as those offers can return the mass profit. â€Å"PUMA have been renewed contract with Jamaican-athletic Usain Bolt that allowed PUMA brand to keep-up, for the risen of 154 percent in annual net earnings to â‚ ¬202.2 million, year-on-year.† (PUMA’s profit â€Å"Bolt†, Jamaica Observer) By gaining suck successful contracts, PUMA try to connect their products brand to famous athletics, and it is also new brand endorsement strategy of PUMA. In short, by using USP, PUMA gain opportunities to wider its market share and make more profit, especially, by lifestyle fitness shoes. PUMA and its Segmentation, Targeting and Positioning To implement marketing strategy, PUMA must define its segmentation, targeting and Positioning. Segmentation Segmentation is related to discover what consumer’s kinds exist and various needs exist. In the athletic footwear market, for example, the demand of consumers may include performance, safety and speed while others are concerned about fashionable. In general, segmentation show the trust which company cannot be every things to everyone and long-time experiences has illustrate that PUMA that focus on the demands of a group of customers more than another for more profitable. Especially, the fitness-shoes market, which can be ‘segment’ by gender and age: Age Age can affect the tendency of buying of consumer. 1. Kids (6 to 12): they may like colorful small-sized shoes. 2. Teens (13 to 18): they may like something that cool and impressive. 3. Adult (19 to 36): They may like the serious color, black or white color is an example. 4. Middle (37 to 55): They may like the same as adult desire. 5. Old (55+): They may like the comfortable, safe and stable. Gender The tendency of buying of consumer also can be affected by gender. Different genders have different demand. 1. Men: They like strong style, and also like strong color like black or white. 2. Women: They like cute and fresh style, and then they may like soft-color like pink, purple, light-green†¦ Thus, there are many segments in fitness shoes market which can be consider as ‘Demographic Segmentation’ that PUMA must satisfy the demand of customer about region, population, climate, population growth rate and density. So the lifestyle fitness shoes can be the answer, because this kind of products is wide cover all of that demand. Targeting First, PUMA need to find out how well the other competitor served the exist segments. It should be harder to approach to segments which are served as well by more than one competitor, in fitness-shoes, for example: NIKE, ADIAS, and KAPPA†¦ Second, PUMA need to find out how large the segment is, and how large it grow, in fitness shoes, for example, in US, the number of female-student who playing sports at university and high-schools has rapidly increased. By now, female-customers participate in every sport in US. Third, in order to archive successful, PUMA should use the ‘Differentiation Strategy’ on all targeted segments, which included: ‘Age’ and ‘Gender’. By using ‘Differentiation Strategy’, PUMA could provide to its consumer the unique features of its goods like lifestyle fitness shoes rather than by lowest price. Because differentiated goods can please the demand of consumers’ unique needs, PUMA can give premium prices for differentiated goods, for example: a pair of lifestyle fitness-shoes can cost more than 1 million VND in Vietnam, that can be consider as luxury goods. Positioning PUMA’s lifestyle fitness-shoes could be positioned following by two main factors: ‘Competitor’ and ‘Consumer’. If the positioning is based on consumer, the marketing campaigns and its messages are targeted to the consumer by branding. That can use logo, symbol which make consumer recognize PUMA and its products. For example: First, the PUMA brand name is popular in the world and people can recognize its name and logo even if no of PUMA’s products is bought by them. Second, the logo is also an important part of branding, itself. The main reason of people that are recognizing PUMA can also recognize its products from this symbol alone. The lifestyle fitness-shoes company PUMA is popular for using a â€Å"leaping cat† (animal) symbol on its product lines. This feature allows consumer to identify PUMA’s lifestyle fitness-shoes, even if the PUMA’s brand name is not showing. Recognition and Loyalty First, recognition, the main benefit of branding is that customers are remembering PUMA’s business. A powerful brand name and logo keep PUMA’s image in the mind of its potential consumer. Second, loyalty, if consumer is please with PUMA products, its brand will help to build consumer’s loyalty. For example, even in the case of consumer is not aware that PUMA sell a new product, if consumer trusts PUMA’s brand, they will trust PUMA with unfamiliar products. Image of Size, Quality, Experience and Reliability First, image of size play an important role when consumer wants to knows that PUMA will still exist in a long time. For example, people often associate the large firms which spend a lot of money on advertising and promotion it’s currently and new products. Second, image of quality, people see that brand can be a part of a product that will help to show its quality and value. If PUMA can process effective branding, then the image of quality in PUMA’s business will raise higher over time. However, branding cannot replace high quality. For example, Nike Inc. sport-wear brand was one of the biggest in the sport-wear world market. However, constant bad publicity about the low paid of its labor at Asia cause damage the image of the brand. Third, image of experience and reliability, PUMA business is to be seen as experienced in its products for a long time, it will make PUMA to be seen more reliable than the other firms. For example, in the case of a customer is choosing a new pair of shoe, there are a PUMA one and the other, but if customer trust PUMA experience, they will choose PUMA. Multiple Products PUMA is being strong brand now which allows it to link several various product lines together. PUMA can put its brand name on each product, it make consumer is willing to buy new product of PUMA. For example, PUMA sells sport-wear, appeal, accessories and etc. all under the PUMA brand name.

Compare and Contrast Man in Water Essay

The man in the water makes what would normally be seen as a normal disaster, if such a thing is possible, into a story that stunned so many people. Allende and Rosenblatt both present alike themes in similar and different ways. One way that these two stories are different is that the man in â€Å"The Man in the Water† tried to help as many people as he could, even when he knew the consequences could be death. But Azucena didn’t really help anyone. Their deaths were also different. 3. Isabel Allende used a realistic fiction story-like approach, while Roger Rosenblatt used an informative, report-like approach. 4. These stories are very similar because they are in the same genre yet still have differences. This essay will compare and contrast these two stories. More specifically, this essay will be comparing and contrasting how both stories convey the genre of magical realism through the characters, and literary devices (how they show it). 5. In the next two paragraphs I will tell you one similarity and one difference that these two writings have regarding their topic and theme. 6. In â€Å"The Man in Water† and â€Å"And of clay are we created†, nature is used in both. They are also both about death, a monster that takes what it wants. Many themes appear in the short stories, but there is only one that both have in common. That is, humans are not powerless against nature. 7. A difference between the short story and the article is that in The Man in the Water, the author didn’t seem to really exaggerate as much as Isabel Allende, the author of And of Clay are we Created. Allende used magic realism and Rosenblatt was more realistic. 8. In two specific stories, Isabel Allende’s And of Clay Are We Created and Roger Rosenblatt’s The Man in the Water, disaster strikes and the people in the stories are symbols of what true human beings should be like; faithful, positive, and strong in the heart and mind. Both†¦

Application of 2D gas chromatography for environmental analysis

All these benefits make GC?GC in the toxic compounds involved in the determination of trace level environmental analysis of a very good tool in complex matrices. This paper summarizes some of the environmental analysis and review and monitoring of the GC?GC applications Introduction Many years of humans society development led to many of the world distribution of chemicals in the atmosphere, the Earth’s surface and land border. Many of these compounds are harmful to the world’s ecosystems and the people. Analysis of these compounds in the environment is important. When analytes have high vapor pressure, gas chromatography is the selection method. The main problem in the environmental analysis is to analyze the existence of material is usually very complex matrix trace. Result, a huge research work into the analysis of major environmental pollutants [1]. Methods used in environmental analysis is usually the same as in all aspects of practice. It includes sampling, sample preparation, separation and detection. All of these steps may benefit from change, it is usually the biggest limitations imposed by the separation step. In gas chromatography (GC) cases, the majority of environmental samples containing analyte and matrix components of many closely eluting peaks in a chromatographic dimension (1D) the maximum total capacity is greatly exceeded, and many coelutions and unresolved in the separation region was observed. This led to the analyte of interest and quantify the poor separation [1]. Poor resolution in the chromatographic analysis of sample preparation and detection of high demand for equipment placement. Expensive and labor-intensive sample preparation, and solvent waste may cause a lot of harmful to the environment. By microextraction method development, such as liquid-liquid microextraction (LLME) and solid phase microextraction (SPME) and non-dissolved sample introduction system (ie, direct thermal desorption), has the potential to greatly simplify the sample preparation process, without sacrificing sensitivity and selectivity [2-5]. On investigation, lack of resolution often means using mass spectrometry (MS), including high-resolution mass spectrometry (HRMS), in some cases, is necessary. Figure 1 illustrates the GC-MS encountered in the common problems [36]. In the analysis of food extracts commonly 1D-GC clinch with insecticides (Fig. 1b), trace interest (in this case chlorfenvinphos) coelute analyte and sample matrix is more abundant components. Results obtained for such compounds, mass spectrometry (Figure 1e) frequently contains compounds derived from fragments of interference, leading to poor matching and library mass spectrometry (Fig. 1d). MS overlap algorithm may greatly improve the quality of the information of coeluting peak, but they are not always successful, when the number of coelutions is high. Figure 1a shows, full 2D-GC (GC?GC) to increase space and improve the chromatographic separation of the resolution, resulting in the separation of analytes of interest (chlorfenvinphos) from coeluting compounds and matrix components. Result, improved the quality of the analyte mass (Fig. 1c), taking into account the proof of a more confident analysis of material (Figure 1d). It is possible that some coelutions exist; these may often solve efficiently overlap with the MS, leading to better results, while reducing the number of components when the coeluting. GC?GC separation with the increased power resulting in a successful demo nstration and quantification of analytes. Fig. 1 GC?GC–TOF MS versus 1D-GC–TOF MS for the analysis of a carrot extract. The highest-capacity problem in terms of conventional gas chromatography through multi-dimensional gas chromatography to cope (MDGC) implementation. In this method, one-dimensional (1D) chromatogram of a complex and unresolved part is subjected to the stationary phase coated with a second column separation of the other selectivity [1]. Although this method increases the 1D chromatographic part of the choice of chromatographic resolutions, this method with automation challenging, and only a few sample components can be adequately addressed. However, the many applications is good for the PCBs, pesticides and toxaphene analysis, among other things, the report with different degrees of success [6-12]. Overall, however, is the exact number of separation will be beneficial, if the entire sample is subjected to a separation in two dimensions. This became possible a comprehensive two-dimensional gas chromatography (GC?GC) in the introduction. Principle for Two-Dimensional Gas Chromatography (GC?GC) 2D-GC is a comprehensive method of fundamental solution to meet the highest capacity. A typical structure of GC?GC set in Figure 2. The basic structure of GC?GC using virtually is the same as the composition of 1D-GC. These include syringes, oven, columns and detectors. In a typical GC?GC system, using non-polar stationary phase coated with a thick coating of a long column was installed as the main column. The exports through a special interface or modem is connected to the entrance of the second dimension column coated with stationary phase of another selectivity. Modulator connected not only to primary and secondary column; its main role is repeated trapping of the effluent fractions from the first dimension and periodic injection of them to the form of narrow pulses separated into further chromatographic analysis. Because the operation of 2D-GC in the fast condition, the detector in the GC?GC selection is limited to those capable of fast data collection rate. For example, GC?GC de tector can include flame ionization detector (FID), electron capture detector (ECD), single atomic emission detector (AED), sulfur compounds optical detector (SCD), nitrogen photodetector compounds (NCD) and time of flight mass spectrometer (TOF MS). Fig. 2 A block diagram of a GC?GC system. Modulator is the important part of the instrument, because it guarantees the separation is comprehensive and multidimensional [13]. In 1991, the first implementation of the GC?GC, the field has witnessed a number of modulator design [14]. Initially, the use of thermal adjustment of the heat modulator was implemented; however, the modular cryogenic liquid (liquid carbon dioxide or nitrogen) is currently the main use. Modulator at low temperatures within the system, each design has its own distinct advantages and limitations, making it suitable for analysis of the specific type. For example, the analysis of water pollutants has been developed an interface [19], when the buildings, and an in-house applications modulator in the quantitative analysis of PAHs and PCBs has been described [15]. Then, the modulator of the different types of analyte in the analysis of organohalogenated been evaluated [16]. The implementation of GC?GC provides the following advantage to surpass the 1D separation method: improvement separation strength; improved sensitivities; and constructs or highly predetermined, stratography spectrum. In the environment analysis, GC?GC has the potential to improve the toxic compound through the separation from the coeluting analysis and the matrix component, increases the detection limit such chemical product and provides the ideal for the surveillance application the two-dimensional stratography spectrum which constructs. Finally, this possibly causes to reduce to the smallest sample preparation procedure, and reduces analysis time. Other applications are also possible. For example, recently, GC?GC the product estimate which divided into for the diesel oil hydrocarbon environment had used, was important affected many ecosystems [17] the oil leak. Application of GC?GC in Environmental Analysis Water and Sediment Analysis The water is the most basic material to the life in planet. In order to estimate that the tap water safety for human consumption, the rapid, precise and the accurate method needs to analysis the water. The sediment is also important for river and the lake; The analysis of water pollutant is time-consuming sample preparation, follows by GC-MS analyzes. In the initial period realized that GC?GC has the great potential improvement to analysis water and sediment. In its earliest applications in this region, GC?GC was explained possibly from the common matrix interference which is separating the BTEX (benzene, toluene, ethyl benzene and xylene) and methyl alcohol tert butyl ether (MTBE), when and SPME [18]. The separation strength of GC?GC is improved; MTBE and the benzene are the foundation line solution in the 2nd chromatograph analysis space. This research showed GC?GC has the great potential for water pollutant analysis by combination this technology with microextraction (head space SPME). Certain Earth’s freshwater body is polluted daily by petroleum and the oil contamination. In the 1970s, it is pays attention the petroleum sample stratography spectrum to exhibit a model, has not solved, foundation line which rises â€Å"hillock† [20]. Chromatogram is the complex part, including compound many different kinds, refers to â€Å"unsolution complex mixture† at present [21]. GC?GC-FID uses in analysis of two different freshwater sediments [21]. Observed the conventional sample preparation procedure, the author has used the superior resolution, and has constructed the chromatogram of sediment for UCM different levele by GC?GC. The chromatogram obtained for two samples provides by clue direction contamination important source researcher. , The research showed GC?GC the potential importantly in the environment law, for an environmental chemistry basic tool, environmental audit. The nonylphenol polyethylene ethoxides’ degenerated product, was possible feminine hormone splitter [22]. Increases the concern, NPs from the urban district [23] the water and the deposition present are found. GC?GC-TOF MS is the NP isomer separation from technical mixture [24] used. 41 components are identified. Figure 3 explanation GC?GC-TOF MS application to NP isomer respective ion trace analysis from identical research. Two NP stave products were explained that m/z 135 (chart 3a) and m/z 149 (chart 3b). Two chromatogram exhibition group type separation, emphasizes by the connection compound peak maximum value in the identical homologous family incline line. It from as a result of various NP isomer structure similarity, the complete separation is the very difficult this chart is obvious. However, other resolution strength by GC?GC provided â€Å"cleanly† the mass spectrum to provide, made the analysis proof to be easier. Fig. 3. Extracted ion GC?GC–TOF MS chromatograms of a technical nonylphenyl (NP) mixture GC?GC for to the environment pollutant’s analysis was recently the application current in oceanic deposit [25]. A qualitative method has developed, fast and is unified according to the tendency by the ultrasonic wave assistance’s extraction to the complex sample’s high resolution analysis provides to GC?GC-TOF UAE which is fast and high efficiency selective sampling pretreatment procedure is utilized solid sample [30]. A high efficiency and has the selective sample preparation method, when the powerful separation method GC?GC combine with UAE can causes 1500 kind of more than several not aromatic hydrocarbon (PAHs) the compound and the certificate resolution, NPs and dialkylated benzene. Once more, GC?GC not only ability from each other isolation analysis, and has proven from the sample matrix priceless. The carcinogen which and the mutagen suspected, PAHs is many industry activity by-product and the universal existence is distributed in the environment. Because it requests the hard sledding and has the selective sample preparation, they in the deposition sample’s trace determination are difficult. The improvement to complex matrix’s PAHs, the Cavagnino trace analysis with GC?GC-FID [large-volume splitless injection (LVSI) technology]. Sample complex which analyzes is many deposition sample representative who obtains from the river and the lake. Separated and investigates seven PAHs which diluted in the synthesis diesel oil to demonstrate the LVSI- GC?GC-FID potential achievement in the low ppb level for to trace amount analysis one powerful and the rapid tool in complex matrix PAHs. While, Ong. and so on has developed a PAHs rapid surveillance method probably in the soil sample, utilizes liquid extraction (PLE) – GC?GC-FID [27]. The current publishing work is merely GC?GC latent serviceable demonstration to deposition sample PAH analysis. In brief, with the resolution which improves, improvement many sensitivities and the stratography spectrum which orders, GC?GC may add on the result which effective and the rapid sample preparation method produces cannot be achieved by the routine analysis procedure. Analysis of PCBs, PCDDs and PCDFs Polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and some polychlorinated biphenyl (PCB) congeners is dominated by bioaccumulation and biomagnification in the environment and thus is a dangerous The wildlife and people. Many are suspected carcinogens and induced changes of [28]. Of PCBs, dioxins and furans in the environment assessment of certain requirements of a method to isolate and quantify them in complex samples such as food, soil and water. GC?GC provides one advantageous method in complex matrix’s PCDDs and the PCDFs analysis. In its one of early experiments, a liquid crystal main column and a limitless secondary column (according to steam pressure separation) uses in (according to the planarity separation) separates the tone – and from technical mixture [30] non-straight PCB congeners. The connection GC?GC microelectron captures investigates (MECD) is toxic PCBs, PCDDs and the PCDFs determination is the application in the cod liver sample [29]. The analysis result showed all 12 priority PCB from liver sample congeners, and most toxic Dai Aoxin and fu nan the full separation and the proof nail fast with 90 PCBs and 17 contain poison PCDDs and PCDFs. Moreover, when compares with the standard sample preparation procedure, the liver sample pretreatment does not have the selectivity and reduces to is smallest. It has included the direct injection and fractionation followed cell degree of illness gradually dra ws back, the centrifuge process to enter GC?GC the system. Figure 4 showing from the 2nd stratography spectrum which obtains to the cod liver sample’s analysis. Recently, an item of multilaboratory research has been conducted in food sample, analyzes PCDD/Fs and World Health Organization PCBs through once more GC?GC-MECD and the GC-HRMS comparison and the explanation GC?GC great potential in the rapid surveillance application [31]. With the standard analysis method comparison GC?GC, GC?GC the performance is unified (GC?GC-ID-TOF MS) has to 13C mark isotopic dilution (ID) TOF MS conventional GC-HRMS to appraise [32]. Quantification 17 PCDD/Fs and four PCBs nail fast in the soil and in the deposition sample are two methods are comparable. However, GC?GC implementation request only smallest sample preparation, and causes the signal improvement (factor 5-10), superior resolution, lower instrumentation expense, and improved TOF the MS data [32] the ghost overlaps legitimately. As highest capacity which and resolution result increases, the unknown compound’s proof is possible. Fig. 4 GC?GC–ECD chromatogram of a cod liver sample spiked with 90 PCBs [29]. Pesticide Analysis Forms the challenge to the pesticide analysis to analyze the chemist to prepare about the sample to make the law and the chromatography. Is similar other toxic compound, the pesticide is usually distributed in the trace amount environment. Moreover, they are extreme complex matrix part of for example foods, the soil and the water sample. Needs to be like today presses to the rapid high resolution analysis method. GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33] the pesticide. To were few from the sharp person’s blood serum extraction’s 15 pesticide’s foundation line segments achieve in four minutes. Later, GC?GC-FID to estimate that the child pesticide exposure has been utilized through the use urine and the blood serum [34] low-power. This special example in were few showed 16 pesticide complete separations in four minutes. Recently, has been demonstrated including PCBs and the organic chlorine pesticide 59 organization pollutant’s proof and the quantification [35]. But GC?GC-ID-TOF MS completed the comparable result author who ran in standard routine analysis (GC-ID-TOFMS) to indicate that analyzed like this, three different injection needs . GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33]. Pesticide determination in food extract is similarly important. Separated using GC?GC-TOF MS and identifies 58 pesticides to nail fast completely on the vegetable was explained [36]. This completed with has been smallest and the non-selective sample preparation: The celery or the carrot sample and the sodium acetate and the ethyl acetate have chopped, mixed, was mixed, has been separated, and is dried. The extract is injected entered GC?GC [36]. Recently, separated 12 halogenate compound kind of groups five different GC?GC column combination to appraise, including PCBs, PCDDs, PCDFs, multi-chlorobenzene diphenyl ester (PCDEs), multi-chlorobenzene naphthalene (PCNs), multi-chlorobenzene dibenzothiophenes (PCDTs), multi-chlorobenzene terphenyl (PCTs), multi-chlorobenzene alkane (PCAs), toxaphene, multi-bromination biphenyl (PBBs), multi-bromination diphenyl ether (PBDEs) and organic chlorine pesticide (OCPs) [37]. Although this article focal point is the different compound kind of major group separates, was also explained in the family separation. When the separation and proof all 28 OCPs are pure pesticide mixture has only been demonstrated that majority has been separated fully, since, when injects along other 11 compound kind of [37]. Therefore, its as if that the column establishment which disposes appropriately with one, GC?GC may use takes mainly shields step for the environment sample contamination and along pollutant m any other kind of pesticides, with smallest sample preparation. Air Analysis Volatile organic compound (VOCs) in metropolis photochemical smog [38] the generation plays a strong character. The World Health Organization thought that possibly has to the air granular material’s exposition to the human health [39] the ill effect. But, uncertainty existence about from VOCs health effect in metropolis granular material (PM) [40]. Therefore, requests rapid, reliable and information method guarantee in air pollutant successful surveillance, proof and discovery. Many PAHs and PAHs (oxy-PAHs) which oxidizes is the carcinogen which and the mutagen suspected, with, therefore they are in the metropolis aerosol analysis profitable target analysis. GC?GC-FID and GC?GC four-pole MS (QMS) is applied permits from Finland about 1500 peaks goal PAHs [41] investigates in the metropolis air sample and the proof. But woman is unified the method for the compound proof and the quantification, used GC?GC-FID the combination to confirm the good reproducibility. 13 non-goal PAHs has been identified, and ten goal PAHs by quota. Found PAH centralism scope (0.5-5.5 ng/m3) with in Europe [41] other parts of standard methods obtained the result was comparable. The cigarette smoke is estimate extreme complex mixture component [43] which has not recognized including about 4,700 kind of identification’s compound and 100,000. GC?GC-TOFMS utilizes the solution approximately from the cigarette smoke [43] 30,000 peaks. After this, analyzes cigarette smoke condensate simpler sample determination neutrality score [44], basic score [45] and acidic score [46] chemical composition. Conventional GC-MS possible to separate 200 unknown peaks and identifies 115 hydrocarbons from the cigarette condensate limitless neutral scores; To identical sample GC?GC analysis, however, has achieved 4,000 kind of compound separations and 1,800 hydrocarbons [44] proved. In another research, GC?GC-TOF has identified 377 kind of nitrogen-containing compound to the cigarette condensate’s basic score’s MS analysis, in 155 is the pyridine derivative, 104 kinds kui lin or different kui lin derivative and 56 kind of pyrazine derivative [45]. Conclusions GC?GC has achieved the condition rapidly for to the volatile organic compound analysis most powerful tool. It appoints oneself achievement to be suitable completely for in the complex sample surveillance analysis technology. In the environment analyzed area, this includes PCBs by the analysis many example testimony to the common environment pollutant, PCDDs, PCDFs, PAHs and the pesticide in the complex environment matrix. Moreover, GC?GC has the potential to simplify the sample preparation procedure (even completely to eliminate them), when simultaneously causes when the shorter overall analysis time high resolution stratography spectrum. Regarding widely a new analysis method which adopts, not only it is certainly reliable and renewable, but it should also exhibit the significant advantage to surpass the method which accepts. The example reported the showing GC?GC method advantage in this review in the traditional 1DGC separation. In GC?GC historical first years period, the instrumentation development is the main focal point; However, from GC?GC system’s commercialization, the application quantity which reported greatly increases in the environment analysis and other scientific fields. Therefore, we may anticipate that the transition automation GC?GC is unified on-line sample which the correspondence uses to prepare gradually the equipment in the regular environmental monitoring. References 1. Marriott PJ. Haglund P, Ong RCY. Clin Chim Acta. 2003, 328:1–19. 2. Pawliszyn J. Solid phase microextraction, theory and practice. Wiley, New York. 1997. 3. Pawliszyn J. (1999) Applications of solid phase microextraction. Royal Society of Chemistry, Cambridge. 4. Dettmer K, Engewald W. Anal Bioanal Chem. 2002, 373: 490–500. 5. Butrym E. LC-GC. 1999, 17:S19–S24. 6. de Geus H-J, Wester PG, Schelvis A, de Boer J, Brinkman UATh. J Environ Monit. 2000, 2:503–511. 7. Mrowetz SHJ. J Chromatogr A. 1983, 279:173–187. 8. Duinker JC, Schultz DE, Petrick G. Mar Pollut Bull. 1998, 19:19–25. 9. Storr-Hansen E. Int J Environ Anal Chem.1991, 43:253–266. 10. Silvis LD, Kapila S, Yan Q, Elseewi AA. J Chromatogr A.1994, 688:221–230. 11. Schurig V, Reich S. Chirality. 1998, 10:425–429. 12. Liem DAK. Trends Anal Chem. 1999, 18:499–507. 13. Giddings JC. Anal Chem. 1984, 6:1258A–1270A. 14. Liu Z, Phillips JB. J Chromatogr Sci.1991, 29:227–231. 15. Hyotylainen T, Kallio M, Hartonen K, Jussila M, Palonen S, Riekkola M-L. Anal Chem. 2002, 74:4441–4446. 16. Kristenson EM, Korytar P, Danielsson C, Kallio M, Brandt M, Makela J, Vreuls RJJ, Beens J, Brinkman UATh. J Chromatogr A. 2003, 1019:65–77. 17. Arey JS, Nelson RK, Xu L, Reddy CM. Anal Chem. 2005, 77:7172–7182. 18. Gaines RB, Ledford EB, Stuart JD. J Microcol Sep. 1998, 10:597–604. 19. Beens J, Dalluge J, Adahchour M, Vreuls JJR, Brinkman UATh. J Microcol Sep. 2001, 13:134–140. 20. Blumer M, Souza G, Sass J. Mar Biol. 1970, 5:195–202. 21. Frysinger GS, Gaines RB, Xu L, Reddy CM. Environ Sci Technol. 2003, 37:653–1662. 22. Mueller SO. Anal Bioanal Chem. 2004, 378:582–587. 23. Ieda T, Horii Y, Petrick G, Yamashita N, Ochiai N, Kannan K. Environ Sci Technol. 2005, 39:7202–7207. 24. Moeder M, Martin C, Schlosser D, Harynuk J, Gorecki T. J Chromatogr A. 2006, 1107:233–239. 25. Morales-Munoz S, Vreuls RJJ, Luque de Castro MD. J Chromatogr A. 2005, 1086:122–127. 26. Cavagnino D, Magni P, Zilioli G, Trestianu S. J Chromatogr A. 2003, 1019:211–220. 27. Ong R, Lundstedt S, Haglund P, Marriott P. J Chromatogr A. 2003, 1019:221–232. 28. Schwarzenbach RP, Gschwend PM, Imboden DM. Environmental organic chemistry, 2nd edn. Wiley-Interscience, Hoboken, NJ. 2003. 29. Korytar P, Leonards PEG, de Boer J, Brinkman UATh. J Chromatogr A. 2002, 958:203–218. 30. Haglund P, Harju M, Ong R, Marriott P. J Microcol Sep. 2001, 13:306–311. 31. Danielsson C, Wiberg K, Korytar P, Bergek S, Brinkman UATh, Haglund P. J Chromatogr A. 2005, 1086:61–70. 32. Focant J-F, Reiner EJ, MacPherson K, Kolic T, Sjodin A, Patterson DG Jr, Reese SL, Dorman FL, Cochran J. Talanta. 2004, 63:1231–1240. 33. Liu Z, Sirimanne SR, Patterson DG Jr, Needham LL. Anal Chem. 1994, 66:3086–3092. 34. Dimandja J-M, Grainger J, Patterson DG Jr, Turner WE, Needham LL. J Exp Anal Environ Epidem. 2000, 10:761–768. 35. Focant J-F, Sjodin A, Turner WE, Patterson DG Jr. Anal Chem. 2004, 76:6313–6320. 36. Dalluge J, van Rijn M, Beens J, Vreuls RJJ, Brinkman UATh. J Chromatogr A. 2002, 965:207–217. 37. Korytar P, Leonards PEG, de Boer J, Brinkman UATh. J Chromatogr A. 2005, 1086:29–44. 38. Fowler D, Coyle M, Ashmore MR, Bower J, Williams ML, Smith R, Dollard GJ, Lee DS, Jenkin M, Stedman JR, Cox RA, Derwent RG, Harrison RM, Hewitt CN, Maynard RL, Penkett SA, Weston KJ, Woods PJ, Burgess RA, Anderson R. Fourth Report of the Oxidants Review Group 75-104. UK Department of the Environment, Transport and Regions, London. 1997. 39. WHO. Health aspects of air pollution with particulate matter, ozone and nitrogen dioxide. World Health Organization, Bonn. 2003. 40. Welthagen W, Schnelle-Kreis J, Zimmermann R. J Chromatogr A. 2003, 1019:233–249. 41. Kallio M, Hyotilainen T, Lehtonen M, Jussila ML, Hartonen K, Shimmo M, Riekkola M-L. J Chromatogr A. 2003, 1019:251– 260. 42. Schnelle-Kreis J, Welthagen W, Sklorz M, Zimmermann R. J Sep Sci. 2005, 28:1648–1657. 43. Dalluge J, van Stee LLP, Xu X, Williams J, Beens J, Vreuls RJJ, Brinkman UATh. J Chromatogr A.2002, 974:169–184. 44. Lu X, Zhao M, Kong H, Cai J, Wu J, Wu M, Hua R, Liu J, Xu G. J Chromatogr A. 2004, 1043:265–273. 45. Lu X, Zhao M, Cai J, Kong H, Wu J, Wu M, Hua R, Liu J, Xu G. J Sep Sci. 2004, 27:101–109. 46. Lu X, Cai J, Zhao M, Kong H, Wu J, Wu M, Hua R, Liu J, Xu G. Anal Chem. 2004, 74:4441–4451. Application of 2D gas chromatography for environmental analysis All these benefits make GC?GC in the toxic compounds involved in the determination of trace level environmental analysis of a very good tool in complex matrices. This paper summarizes some of the environmental analysis and review and monitoring of the GC?GC applications Introduction Many years of humans society development led to many of the world distribution of chemicals in the atmosphere, the Earth’s surface and land border. Many of these compounds are harmful to the world’s ecosystems and the people. Analysis of these compounds in the environment is important. When analytes have high vapor pressure, gas chromatography is the selection method. The main problem in the environmental analysis is to analyze the existence of material is usually very complex matrix trace. Result, a huge research work into the analysis of major environmental pollutants [1]. Methods used in environmental analysis is usually the same as in all aspects of practice. It includes sampling, sample preparation, separation and detection. All of these steps may benefit from change, it is usually the biggest limitations imposed by the separation step. In gas chromatography (GC) cases, the majority of environmental samples containing analyte and matrix components of many closely eluting peaks in a chromatographic dimension (1D) the maximum total capacity is greatly exceeded, and many coelutions and unresolved in the separation region was observed. This led to the analyte of interest and quantify the poor separation [1]. Poor resolution in the chromatographic analysis of sample preparation and detection of high demand for equipment placement. Expensive and labor-intensive sample preparation, and solvent waste may cause a lot of harmful to the environment. By microextraction method development, such as liquid-liquid microextraction (LLME) and solid phase microextraction (SPME) and non-dissolved sample introduction system (ie, direct thermal desorption), has the potential to greatly simplify the sample preparation process, without sacrificing sensitivity and selectivity [2-5]. On investigation, lack of resolution often means using mass spectrometry (MS), including high-resolution mass spectrometry (HRMS), in some cases, is necessary. Figure 1 illustrates the GC-MS encountered in the common problems [36]. In the analysis of food extracts commonly 1D-GC clinch with insecticides (Fig. 1b), trace interest (in this case chlorfenvinphos) coelute analyte and sample matrix is more abundant components. Results obtained for such compounds, mass spectrometry (Figure 1e) frequently contains compounds derived from fragments of interference, leading to poor matching and library mass spectrometry (Fig. 1d). MS overlap algorithm may greatly improve the quality of the information of coeluting peak, but they are not always successful, when the number of coelutions is high. Figure 1a shows, full 2D-GC (GC?GC) to increase space and improve the chromatographic separation of the resolution, resulting in the separation of analytes of interest (chlorfenvinphos) from coeluting compounds and matrix components. Result, improved the quality of the analyte mass (Fig. 1c), taking into account the proof of a more confident analysis of material (Figure 1d). It is possible that some coelutions exist; these may often solve efficiently overlap with the MS, leading to better results, while reducing the number of components when the coeluting. GC?GC separation with the increased power resulting in a successful demo nstration and quantification of analytes. Fig. 1 GC?GC–TOF MS versus 1D-GC–TOF MS for the analysis of a carrot extract. The highest-capacity problem in terms of conventional gas chromatography through multi-dimensional gas chromatography to cope (MDGC) implementation. In this method, one-dimensional (1D) chromatogram of a complex and unresolved part is subjected to the stationary phase coated with a second column separation of the other selectivity [1]. Although this method increases the 1D chromatographic part of the choice of chromatographic resolutions, this method with automation challenging, and only a few sample components can be adequately addressed. However, the many applications is good for the PCBs, pesticides and toxaphene analysis, among other things, the report with different degrees of success [6-12]. Overall, however, is the exact number of separation will be beneficial, if the entire sample is subjected to a separation in two dimensions. This became possible a comprehensive two-dimensional gas chromatography (GC?GC) in the introduction. Principle for Two-Dimensional Gas Chromatography (GC?GC) 2D-GC is a comprehensive method of fundamental solution to meet the highest capacity. A typical structure of GC?GC set in Figure 2. The basic structure of GC?GC using virtually is the same as the composition of 1D-GC. These include syringes, oven, columns and detectors. In a typical GC?GC system, using non-polar stationary phase coated with a thick coating of a long column was installed as the main column. The exports through a special interface or modem is connected to the entrance of the second dimension column coated with stationary phase of another selectivity. Modulator connected not only to primary and secondary column; its main role is repeated trapping of the effluent fractions from the first dimension and periodic injection of them to the form of narrow pulses separated into further chromatographic analysis. Because the operation of 2D-GC in the fast condition, the detector in the GC?GC selection is limited to those capable of fast data collection rate. For example, GC?GC de tector can include flame ionization detector (FID), electron capture detector (ECD), single atomic emission detector (AED), sulfur compounds optical detector (SCD), nitrogen photodetector compounds (NCD) and time of flight mass spectrometer (TOF MS). Fig. 2 A block diagram of a GC?GC system. Modulator is the important part of the instrument, because it guarantees the separation is comprehensive and multidimensional [13]. In 1991, the first implementation of the GC?GC, the field has witnessed a number of modulator design [14]. Initially, the use of thermal adjustment of the heat modulator was implemented; however, the modular cryogenic liquid (liquid carbon dioxide or nitrogen) is currently the main use. Modulator at low temperatures within the system, each design has its own distinct advantages and limitations, making it suitable for analysis of the specific type. For example, the analysis of water pollutants has been developed an interface [19], when the buildings, and an in-house applications modulator in the quantitative analysis of PAHs and PCBs has been described [15]. Then, the modulator of the different types of analyte in the analysis of organohalogenated been evaluated [16]. The implementation of GC?GC provides the following advantage to surpass the 1D separation method: improvement separation strength; improved sensitivities; and constructs or highly predetermined, stratography spectrum. In the environment analysis, GC?GC has the potential to improve the toxic compound through the separation from the coeluting analysis and the matrix component, increases the detection limit such chemical product and provides the ideal for the surveillance application the two-dimensional stratography spectrum which constructs. Finally, this possibly causes to reduce to the smallest sample preparation procedure, and reduces analysis time. Other applications are also possible. For example, recently, GC?GC the product estimate which divided into for the diesel oil hydrocarbon environment had used, was important affected many ecosystems [17] the oil leak. Application of GC?GC in Environmental Analysis Water and Sediment Analysis The water is the most basic material to the life in planet. In order to estimate that the tap water safety for human consumption, the rapid, precise and the accurate method needs to analysis the water. The sediment is also important for river and the lake; The analysis of water pollutant is time-consuming sample preparation, follows by GC-MS analyzes. In the initial period realized that GC?GC has the great potential improvement to analysis water and sediment. In its earliest applications in this region, GC?GC was explained possibly from the common matrix interference which is separating the BTEX (benzene, toluene, ethyl benzene and xylene) and methyl alcohol tert butyl ether (MTBE), when and SPME [18]. The separation strength of GC?GC is improved; MTBE and the benzene are the foundation line solution in the 2nd chromatograph analysis space. This research showed GC?GC has the great potential for water pollutant analysis by combination this technology with microextraction (head space SPME). Certain Earth’s freshwater body is polluted daily by petroleum and the oil contamination. In the 1970s, it is pays attention the petroleum sample stratography spectrum to exhibit a model, has not solved, foundation line which rises â€Å"hillock† [20]. Chromatogram is the complex part, including compound many different kinds, refers to â€Å"unsolution complex mixture† at present [21]. GC?GC-FID uses in analysis of two different freshwater sediments [21]. Observed the conventional sample preparation procedure, the author has used the superior resolution, and has constructed the chromatogram of sediment for UCM different levele by GC?GC. The chromatogram obtained for two samples provides by clue direction contamination important source researcher. , The research showed GC?GC the potential importantly in the environment law, for an environmental chemistry basic tool, environmental audit. The nonylphenol polyethylene ethoxides’ degenerated product, was possible feminine hormone splitter [22]. Increases the concern, NPs from the urban district [23] the water and the deposition present are found. GC?GC-TOF MS is the NP isomer separation from technical mixture [24] used. 41 components are identified. Figure 3 explanation GC?GC-TOF MS application to NP isomer respective ion trace analysis from identical research. Two NP stave products were explained that m/z 135 (chart 3a) and m/z 149 (chart 3b). Two chromatogram exhibition group type separation, emphasizes by the connection compound peak maximum value in the identical homologous family incline line. It from as a result of various NP isomer structure similarity, the complete separation is the very difficult this chart is obvious. However, other resolution strength by GC?GC provided â€Å"cleanly† the mass spectrum to provide, made the analysis proof to be easier. Fig. 3. Extracted ion GC?GC–TOF MS chromatograms of a technical nonylphenyl (NP) mixture GC?GC for to the environment pollutant’s analysis was recently the application current in oceanic deposit [25]. A qualitative method has developed, fast and is unified according to the tendency by the ultrasonic wave assistance’s extraction to the complex sample’s high resolution analysis provides to GC?GC-TOF UAE which is fast and high efficiency selective sampling pretreatment procedure is utilized solid sample [30]. A high efficiency and has the selective sample preparation method, when the powerful separation method GC?GC combine with UAE can causes 1500 kind of more than several not aromatic hydrocarbon (PAHs) the compound and the certificate resolution, NPs and dialkylated benzene. Once more, GC?GC not only ability from each other isolation analysis, and has proven from the sample matrix priceless. The carcinogen which and the mutagen suspected, PAHs is many industry activity by-product and the universal existence is distributed in the environment. Because it requests the hard sledding and has the selective sample preparation, they in the deposition sample’s trace determination are difficult. The improvement to complex matrix’s PAHs, the Cavagnino trace analysis with GC?GC-FID [large-volume splitless injection (LVSI) technology]. Sample complex which analyzes is many deposition sample representative who obtains from the river and the lake. Separated and investigates seven PAHs which diluted in the synthesis diesel oil to demonstrate the LVSI- GC?GC-FID potential achievement in the low ppb level for to trace amount analysis one powerful and the rapid tool in complex matrix PAHs. While, Ong. and so on has developed a PAHs rapid surveillance method probably in the soil sample, utilizes liquid extraction (PLE) – GC?GC-FID [27]. The current publishing work is merely GC?GC latent serviceable demonstration to deposition sample PAH analysis. In brief, with the resolution which improves, improvement many sensitivities and the stratography spectrum which orders, GC?GC may add on the result which effective and the rapid sample preparation method produces cannot be achieved by the routine analysis procedure. Analysis of PCBs, PCDDs and PCDFs Polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and some polychlorinated biphenyl (PCB) congeners is dominated by bioaccumulation and biomagnification in the environment and thus is a dangerous The wildlife and people. Many are suspected carcinogens and induced changes of [28]. Of PCBs, dioxins and furans in the environment assessment of certain requirements of a method to isolate and quantify them in complex samples such as food, soil and water. GC?GC provides one advantageous method in complex matrix’s PCDDs and the PCDFs analysis. In its one of early experiments, a liquid crystal main column and a limitless secondary column (according to steam pressure separation) uses in (according to the planarity separation) separates the tone – and from technical mixture [30] non-straight PCB congeners. The connection GC?GC microelectron captures investigates (MECD) is toxic PCBs, PCDDs and the PCDFs determination is the application in the cod liver sample [29]. The analysis result showed all 12 priority PCB from liver sample congeners, and most toxic Dai Aoxin and fu nan the full separation and the proof nail fast with 90 PCBs and 17 contain poison PCDDs and PCDFs. Moreover, when compares with the standard sample preparation procedure, the liver sample pretreatment does not have the selectivity and reduces to is smallest. It has included the direct injection and fractionation followed cell degree of illness gradually dra ws back, the centrifuge process to enter GC?GC the system. Figure 4 showing from the 2nd stratography spectrum which obtains to the cod liver sample’s analysis. Recently, an item of multilaboratory research has been conducted in food sample, analyzes PCDD/Fs and World Health Organization PCBs through once more GC?GC-MECD and the GC-HRMS comparison and the explanation GC?GC great potential in the rapid surveillance application [31]. With the standard analysis method comparison GC?GC, GC?GC the performance is unified (GC?GC-ID-TOF MS) has to 13C mark isotopic dilution (ID) TOF MS conventional GC-HRMS to appraise [32]. Quantification 17 PCDD/Fs and four PCBs nail fast in the soil and in the deposition sample are two methods are comparable. However, GC?GC implementation request only smallest sample preparation, and causes the signal improvement (factor 5-10), superior resolution, lower instrumentation expense, and improved TOF the MS data [32] the ghost overlaps legitimately. As highest capacity which and resolution result increases, the unknown compound’s proof is possible. Fig. 4 GC?GC–ECD chromatogram of a cod liver sample spiked with 90 PCBs [29]. Pesticide Analysis Forms the challenge to the pesticide analysis to analyze the chemist to prepare about the sample to make the law and the chromatography. Is similar other toxic compound, the pesticide is usually distributed in the trace amount environment. Moreover, they are extreme complex matrix part of for example foods, the soil and the water sample. Needs to be like today presses to the rapid high resolution analysis method. GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33] the pesticide. To were few from the sharp person’s blood serum extraction’s 15 pesticide’s foundation line segments achieve in four minutes. Later, GC?GC-FID to estimate that the child pesticide exposure has been utilized through the use urine and the blood serum [34] low-power. This special example in were few showed 16 pesticide complete separations in four minutes. Recently, has been demonstrated including PCBs and the organic chlorine pesticide 59 organization pollutant’s proof and the quantification [35]. But GC?GC-ID-TOF MS completed the comparable result author who ran in standard routine analysis (GC-ID-TOFMS) to indicate that analyzed like this, three different injection needs . GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33]. Pesticide determination in food extract is similarly important. Separated using GC?GC-TOF MS and identifies 58 pesticides to nail fast completely on the vegetable was explained [36]. This completed with has been smallest and the non-selective sample preparation: The celery or the carrot sample and the sodium acetate and the ethyl acetate have chopped, mixed, was mixed, has been separated, and is dried. The extract is injected entered GC?GC [36]. Recently, separated 12 halogenate compound kind of groups five different GC?GC column combination to appraise, including PCBs, PCDDs, PCDFs, multi-chlorobenzene diphenyl ester (PCDEs), multi-chlorobenzene naphthalene (PCNs), multi-chlorobenzene dibenzothiophenes (PCDTs), multi-chlorobenzene terphenyl (PCTs), multi-chlorobenzene alkane (PCAs), toxaphene, multi-bromination biphenyl (PBBs), multi-bromination diphenyl ether (PBDEs) and organic chlorine pesticide (OCPs) [37]. Although this article focal point is the different compound kind of major group separates, was also explained in the family separation. When the separation and proof all 28 OCPs are pure pesticide mixture has only been demonstrated that majority has been separated fully, since, when injects along other 11 compound kind of [37]. Therefore, its as if that the column establishment which disposes appropriately with one, GC?GC may use takes mainly shields step for the environment sample contamination and along pollutant m any other kind of pesticides, with smallest sample preparation. Air Analysis Volatile organic compound (VOCs) in metropolis photochemical smog [38] the generation plays a strong character. The World Health Organization thought that possibly has to the air granular material’s exposition to the human health [39] the ill effect. But, uncertainty existence about from VOCs health effect in metropolis granular material (PM) [40]. Therefore, requests rapid, reliable and information method guarantee in air pollutant successful surveillance, proof and discovery. Many PAHs and PAHs (oxy-PAHs) which oxidizes is the carcinogen which and the mutagen suspected, with, therefore they are in the metropolis aerosol analysis profitable target analysis. GC?GC-FID and GC?GC four-pole MS (QMS) is applied permits from Finland about 1500 peaks goal PAHs [41] investigates in the metropolis air sample and the proof. But woman is unified the method for the compound proof and the quantification, used GC?GC-FID the combination to confirm the good reproducibility. 13 non-goal PAHs has been identified, and ten goal PAHs by quota. Found PAH centralism scope (0.5-5.5 ng/m3) with in Europe [41] other parts of standard methods obtained the result was comparable. The cigarette smoke is estimate extreme complex mixture component [43] which has not recognized including about 4,700 kind of identification’s compound and 100,000. GC?GC-TOFMS utilizes the solution approximately from the cigarette smoke [43] 30,000 peaks. After this, analyzes cigarette smoke condensate simpler sample determination neutrality score [44], basic score [45] and acidic score [46] chemical composition. Conventional GC-MS possible to separate 200 unknown peaks and identifies 115 hydrocarbons from the cigarette condensate limitless neutral scores; To identical sample GC?GC analysis, however, has achieved 4,000 kind of compound separations and 1,800 hydrocarbons [44] proved. In another research, GC?GC-TOF has identified 377 kind of nitrogen-containing compound to the cigarette condensate’s basic score’s MS analysis, in 155 is the pyridine derivative, 104 kinds kui lin or different kui lin derivative and 56 kind of pyrazine derivative [45]. Conclusions GC?GC has achieved the condition rapidly for to the volatile organic compound analysis most powerful tool. It appoints oneself achievement to be suitable completely for in the complex sample surveillance analysis technology. In the environment analyzed area, this includes PCBs by the analysis many example testimony to the common environment pollutant, PCDDs, PCDFs, PAHs and the pesticide in the complex environment matrix. Moreover, GC?GC has the potential to simplify the sample preparation procedure (even completely to eliminate them), when simultaneously causes when the shorter overall analysis time high resolution stratography spectrum. Regarding widely a new analysis method which adopts, not only it is certainly reliable and renewable, but it should also exhibit the significant advantage to surpass the method which accepts. The example reported the showing GC?GC method advantage in this review in the traditional 1DGC separation. In GC?GC historical first years period, the instrumentation development is the main focal point; However, from GC?GC system’s commercialization, the application quantity which reported greatly increases in the environment analysis and other scientific fields. Therefore, we may anticipate that the transition automation GC?GC is unified on-line sample which the correspondence uses to prepare gradually the equipment in the regular environmental monitoring. References 1. Marriott PJ. Haglund P, Ong RCY. Clin Chim Acta. 2003, 328:1–19. 2. Pawliszyn J. Solid phase microextraction, theory and practice. Wiley, New York. 1997. 3. Pawliszyn J. (1999) Applications of solid phase microextraction. Royal Society of Chemistry, Cambridge. 4. Dettmer K, Engewald W. Anal Bioanal Chem. 2002, 373: 490–500. 5. Butrym E. LC-GC. 1999, 17:S19–S24. 6. de Geus H-J, Wester PG, Schelvis A, de Boer J, Brinkman UATh. J Environ Monit. 2000, 2:503–511. 7. Mrowetz SHJ. J Chromatogr A. 1983, 279:173–187. 8. Duinker JC, Schultz DE, Petrick G. Mar Pollut Bull. 1998, 19:19–25. 9. Storr-Hansen E. Int J Environ Anal Chem.1991, 43:253–266. 10. Silvis LD, Kapila S, Yan Q, Elseewi AA. J Chromatogr A.1994, 688:221–230. 11. Schurig V, Reich S. Chirality. 1998, 10:425–429. 12. Liem DAK. Trends Anal Chem. 1999, 18:499–507. 13. Giddings JC. Anal Chem. 1984, 6:1258A–1270A. 14. Liu Z, Phillips JB. J Chromatogr Sci.1991, 29:227–231. 15. Hyotylainen T, Kallio M, Hartonen K, Jussila M, Palonen S, Riekkola M-L. Anal Chem. 2002, 74:4441–4446. 16. Kristenson EM, Korytar P, Danielsson C, Kallio M, Brandt M, Makela J, Vreuls RJJ, Beens J, Brinkman UATh. J Chromatogr A. 2003, 1019:65–77. 17. Arey JS, Nelson RK, Xu L, Reddy CM. Anal Chem. 2005, 77:7172–7182. 18. Gaines RB, Ledford EB, Stuart JD. J Microcol Sep. 1998, 10:597–604. 19. Beens J, Dalluge J, Adahchour M, Vreuls JJR, Brinkman UATh. J Microcol Sep. 2001, 13:134–140. 20. Blumer M, Souza G, Sass J. Mar Biol. 1970, 5:195–202. 21. 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Radical Feminism most effective for the third wave of feminism Essay

Radical Feminism most effective for the third wave of feminism - Essay Example Passive methods of action will only do so much as structural and societal constraints will prevail. Unless there is a more radical outreach, women will remain the â€Å"underdog† in society, especially because the focus is more on conceptual ideologies such as the abolishment of gender role expectations. These issues, much like in the second wave of feminism, will only become marginalized by other social outcries such as welfare that are apparent and seem to need greater attention. Radical Feminism has proven to be the more effective choice of action since it promotes a greater, positive dialogue and initiates a course of action in support of feminist ideals. Therefore, radical feminism may arguably be considered more appropriate for the third wave of feminism. The following paper will define the term radical in relation to feminism and identify boundaries due to its significant spectrum. Furthermore, to support the above-mentioned claims, cases in which radical feminist movem ents in the past have been more effective from relatively passive movements in the incidence of the Women’s Suffrage, will be identified. Like much of feminism, radical feminism too is highly misunderstood. The textbook definition of the term is as follows, â€Å"Radical feminism is a "current" within feminism that focuses on the theory of patriarchy as a system of power that organizes society into a complex of relationships based on an assumption of "male supremacy" used to oppress women†. Additionally, â€Å"Radical feminists tend to be more militant in their approach (radical as "getting to the root") than other feminists are† (Lewis, 2014). The first part defines the term in a broad ideological sense whereas the second shares the thought response. In the technical sense this is fair considering being a militant refers to a broad group of people such as activists, revolutionaries, terrorists or even insurgents, and feminists can be both revolutionaries and activists.

Fundamentals of finance Essay Example | Topics and Well Written Essays - 2000 words

Fundamentals of finance - Essay Example ITV broadcasting operates a group of channels which include ITV1 and also delivers content across a number of platforms like ITV player and itv.com. Its studios produce and sell formats and programmes both in UK and globally. WPP Plc operates a communications services group. The operations of the company encompass media, information and consultancy, public affairs, public relations, identity services, branding, investment management and advertising. WPP is a global leader in the marketing of communication services, and it comprises of public relation and public affairs companies, advertising companies and promotion and relationship marketing companies. The history of WPP dates back in 1985 when Martin Sorrel builds a worldwide marketing services company after a search on public entity. 2. Company strengths and weaknesses Analysis of the financial performance of each company WPP Plc Current ratio The current ratio for WPP Plc in 2011 was 0.94:1. Current ratio measures the ability of a firm to cater for its short term obligations using its short term assets. The current ratio is lower than 1, and this means that WPP Plc was not in a better financial position to cater for its obligations. Gearing ratios 1. Debt to equity ratio The debt to equity ratio for WPP Plc during the 2011 financial year was 2.67. This ratio is obtained by dividing total liabilities by shareholders equity and this ratio means that the total liabilities are more than the shareholders equity. This high ratio is an indication of how aggressive WPP plc has been when it comes to using debts to finance its growth. A lot of debt was used to finance the 2011 growth and this ahs led to increased operations and hence the company was able to generate increased earnings using this financing than it would have done without these finances. 2. Debt ratio The debt ratio for WPP plc in 2011 was 0.72. The debt ratio is less than 1, and this indicates that the company has less debts than assets or has more ass ets that the debts. As a result, the company faces fewer risks when it comes to debt loads. Profitability ratios 1. Profit margin Profit margin for WPP plc in the 2011 financial years was 9.14%. This ratio measures how much a company generates from each dollar of sales (Bull 2007). This means that the company keeps $0.914 of each dollar of revenue collected. The profit margin ratio for the company in 2011 was low which indicates a high risk that any decline in sales will erase or do way with the profit and lead to a net loss. 2. Return on assets WPP plc return on assets ratio for the 2011 financial year was 3.7%. The low ratio is an indicator of how inefficient the company was in managing its assets in order to generate income. In simple terms, the ratio shows how less profitable the company was relative to its total assets. 3. Return on equity The return on equity for WPP for the 2011 was 13.6%. This low percentage is an indication the company did not generate much profit from the shareholders funds invested in the company. Dividend payout ratio Dividend payout ratio for WPP plc was 33% during the 2011 financial year. The high dividend ratio for the company is an indication the earnings of the company highly support the payment of