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Author : Mattias Järemo
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.3/5 (91 download)
Download or read book Analytical Supercritical Fluid Extraction of Lipid Containing Samples written by Mattias Järemo and published by . This book was released on 1998 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E.D. Ramsey
Publisher : Springer Science & Business Media
ISBN 13 : 9401149488
Total Pages : 449 pages
Book Rating : 4.4/5 (11 download)
Download or read book Analytical Supercritical Fluid Extraction Techniques written by E.D. Ramsey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade supercritical fluid extration (SFE) has attracted considerable attention as a sample preparation procedure in analytical chemistry. The successful implementation of this technique can lead to improved sample throughput, more efficient recovery of analytes, cleaner extracts, economic replacement of halogenated solvents and a high level of automation, compared to conventional sample preparation procedures. This book provides an overview of basic principles of SFE as well as in-depth reviews of both on- and off-line SFE methods. The on-line coupling of SFE with both chromatographic and spectroscopics techniques has been the subject of a great deal of research effort and is dealt with in detail. Newer developments, such as off-line SFE of solid and liquid matrices, are starting to attract a great deal of interest, and the coverage of these areas will prove of particular value to the analytical chemist. The international team of authors has illustrated these topics with many `state-of-the-art' applications, and each chapter provides a comprehensive list of references. For the convenience of the reader, an appendix which contains pressure conversion scales and supercritical fluid carbon dioxide density tables appears at the end of the book. The volume's extensive coverage of both on-line and off-line extraction will be particularly useful to analytical chemists, in a wide range of environments, seeking to develop high quality, simple and robust SFE methods.
Author : Maria D. Luque de Castro
Publisher : Springer Science & Business Media
ISBN 13 : 3642786731
Total Pages : 332 pages
Book Rating : 4.6/5 (427 download)
Download or read book Analytical Supercritical Fluid Extraction written by Maria D. Luque de Castro and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in analytical chemistry have turned it into a virtually unrecognizable science compared to a few decades ago, when it lagged behind other sciences and techniques. However, advances in analytical science have been far from universal: while innovations in instrumentation and data acquisition and processing systems have reached unprecedented levels thanks to parallel breakthroughs in computer science and chemo metrics, progress in preliminary operations has been much slower despite their importance to analytical results. Thus, such clear trends in analytical process development as automation and miniaturization have not reached preliminary operations to the same extent, even though this area is pro bably in the greatest need. Improvement in preliminary operations is thus an urgent goal of analytical chemistry on the verge of the twenty first century. Increased R&D endeavours and manufacture of commercially available automatic equipment for implementation of the wide variety of operations that separate the uncollected, unmeasured, untreated sample from the signal measuring step are thus crucial on account of the wide variability of such operations, which precludes development of all-purpose equipment, and the complexity of some, particularly relating to solid samples. Supercritical fluid extraction opens up interesting prospects in this context and is no doubt an effective approach to automatioI1 and mini aturization in the preliminary steps of the analytical process. The dramatic developments achieved in its short life are atypical in many respects.
Author : S.C. Moldoveanu
Publisher : Elsevier
ISBN 13 : 0080540708
Total Pages : 949 pages
Book Rating : 4.0/5 (85 download)
Download or read book Sample Preparation in Chromatography written by S.C. Moldoveanu and published by Elsevier. This book was released on 2002-05-08 with total page 949 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sample preparation is an essential step in many analyses. This book approaches the topic of sample preparation in chromatography in a methodical way, viewing it as a logical connection between sample collection and analytical chromatography. Providing a guide for choosing the appropriate sample preparation for a given analysis, this book describes various ways to process the sample, explaining the principle, discussing the advantages and disadvantages, describing the applicability to different types of samples, and showing the fitness to specific chromatographic determinations. The first part of the book contains an overview of sample preparation showing its relation to sample collection and to the core chromatographic analysis. The second part covers procedures that do not use chemical modifications of the analyte and includes methods for sample dissolution, concentration and cleanup designed mainly for modifying the initial matrix of the sample. This part starts with conventional separations such as filtration and distillation and finishes with more advanced techniques such as solid phase extraction and electroseparations. The third part gives a description of the chemical modifications that can be performed on a sample either for fractionation purposes or to improve a specific property of the analyte. This part includes derivatizations, polymer chemical degradations, and pyrolysis.
Author : Bernd Wenclawiak
Publisher : Springer Science & Business Media
ISBN 13 : 3642774741
Total Pages : 225 pages
Book Rating : 4.6/5 (427 download)
Download or read book Analysis with Supercritical Fluids: Extraction and Chromatography written by Bernd Wenclawiak and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of supercritical fluids in analytical chemistry is still grow ing. More and more analysts are discovering the favorable advan tages for a number of applications. Especially supercritical fluid extraction (SFE) has attracted a lot of interest in recent years due to its simplicity. Supercritical fluid chromatography (SFC) has become better established and the development of this technique has been accelerated by the many applications with capillary col umns which have been published in the literature. At first SFC equipment was based on instruments commonly used for liquid chromatography, and the first commercial in struments were derived from this technology. However, capillary columns can be much more easily interfaced to gas chromatogra phy equipment especially to the detectors commonly used for Oc. Many stationary phases both for packed micro columns and capillary columns have been designed for SFC purposes extending this technology to LC and OC. The most common fluid applied in SFC and SFE is carbon dioxide. The advantages of supercritical CO , such as having dif 2 fusivity like a gas and solvating power depending on temperature and pressure, are also valid for other fluids and modified fluids. Both properties are valuable for sample extraction and extraction selectivity.
Author : J.R. Dean
Publisher : Springer Science & Business Media
ISBN 13 : 940112146X
Total Pages : 238 pages
Book Rating : 4.4/5 (11 download)
Download or read book Applications of Supercritical Fluids in Industrial Analysis written by J.R. Dean and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued search for rapid, efficient and cost-effective means of analytical measurement has introduced supercritical fluids into the field of analytical chemistry. Two areas are common: supercritical fluid chroma tography and supercritical fluid extraction. Both seek to exploit the unique properties of a gas at temperatures and pressures above the critical point. The most common supercritical fluid is carbon dioxide, employed because of its low critical temperature (31 °C), inertness, purity, non-toxicity and cheapness. Alternative supercritical fluids are also used and often in conjunction with modifiers. The combined gas-like mass transfer and liquid-like solvating characteristics have been used for improved chroma tographic separation and faster sample preparation. Supercritical fluid chromatography (SFC) is complementary to gas chro matography ( GC) and high performance liquid chromatography (HPLC), providing higher efficiency than HPLC, together with the ability to analyse thermally labile and high molecular weight analytes. Both packed and open tubular columns can be employed, providing the capability to analyse a wide range of sample types. In addition, flame ionization detection can be used, thus providing 'universal' detection.
Author : Richard E. McDonald
Publisher : The American Oil Chemists Society
ISBN 13 : 9780935315806
Total Pages : 424 pages
Book Rating : 4.3/5 (158 download)
Download or read book New Techniques and Applications in Lipid Analysis written by Richard E. McDonald and published by The American Oil Chemists Society. This book was released on 1997 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Techniques and Applications in Lipid Analysis provides an informative and comprehensive reference book covering the latest and most important analytical topics in lipid chemistry. Researchers in biomedicine, food industry, food processing, product development, nutrition and dietetics, oil processing, fat substitutes, and lipid technology, as well as students in the fields of food science and nutrition, will greatly benefit from this book.
Author : Jerry W. King
Publisher : The American Oil Chemists Society
ISBN 13 : 9780935315714
Total Pages : 456 pages
Book Rating : 4.3/5 (157 download)
Download or read book Supercritical Fluid Technology in Oil and Lipid Chemistry written by Jerry W. King and published by The American Oil Chemists Society. This book was released on 1996 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamics of supercritical fluids with respect to lipid-containing systems; Solubility measurement of lipid constituents in supercritical fluids; Supercritical fluid extraction of oilseeds/lipids in natural products; Supercritical fractionation of lipids; Oilseed solubility and extraction modeling; Modeling of the supercritical fluid extraction rate of oilseeds; Design and economic analysis of supercritical fluid extraction processes; Supercritical fluid extraction and fractionation of fish oils; Supercritical fluid extraction of egg lipids; Supercritical fluid extraction of Cocoa and Cocoa products; Superctitical CO2 extraction of meat products and edible animal fats for cholesterol reduction; Supercritical fluid extraction of algae; Effect of supercritical fluids on residual meals and protein functionality; Treatment of food materials with supercritical carbon dioxide; Enzymatic synthesis in supercritical fluids; Basic principles and the role of supercritical fluid chromatography in lipid analysis; Supercritical fluid chromatography for the analysis of oleochemicals; Supercritical fluid chromatography of trace components in oils and fats; Analytical supercritical fluid extraction for oil and lipid analysis.
Author : Tsung Min Kuo
Publisher : CRC Press
ISBN 13 : 0824744187
Total Pages : 837 pages
Book Rating : 4.8/5 (247 download)
Download or read book Lipid Biotechnology written by Tsung Min Kuo and published by CRC Press. This book was released on 2002-01-22 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the latest advances in supercritical fluid technology, biocatalysis, bioprocess engineering, and crop breeding. It offers an in-depth review of the most recent principles and approaches utilized in the development and design of lipids for cosmetic, industrial and pharmaceutical, and food products. Discussing a variety of lipid-active enzymes from animal, plant, fungal, and microbial sources, "Lipid Biotechnology" covers modern techniques in genetic engineering for the modification of conventional oilseed crops and biosynthetic pathways for cutin polymers, flavor volatiles, oxylipins, and terpenoid compounds. It chronicles the use of lipases and phospholipases in the creation of structured lipids and fats, including cocoa butter, low-calorie fats, and Betapol, and emerging methods using supercritical carbon dioxide as a benign solvent for lipid analysis, fractionation, and enzymatic reaction. It also covers reaction conditions, reactor design, solvent selection, immobilization technology, and enzyme sources for optiml large-scale manufacturing, and describes the formation of oxylipins through the lipoxygenase pathway, as well as other unusual fatty acids. The authors provide in-depth analyses of the structure, metabolic and enzymatic functions and mechanisms, defensive and catalytic properties, industrial uses, and other applications of oxilipins and lipases.
Author : Leo M. L. Nollet
Publisher : John Wiley & Sons
ISBN 13 : 0470961848
Total Pages : 506 pages
Book Rating : 4.4/5 (79 download)
Download or read book Analysis of Endocrine Disrupting Compounds in Food written by Leo M. L. Nollet and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of Endocrine Disrupting Compounds in Food provides a unique and comprehensive professional reference source covering most of the recent analytical methodology of endocrine disrupting compounds in food. Editor Nollet and his broad team of international contributors address the most recent advances in analysis of endocrine disrupting chemicals in food. While covering conventional (typically lab-based) methods of analysis, the book focuses on leading-edge technologies that recently have been introduced. The book looks at areas such as food quality assurance and safety. Issues such as persistent organic pollutants, monitoring pesticide and herbicide residues in food, determining heavy and other metals in food and discussing the impacts of dioxins, PCBs, PCDFs and many other suspected chemicals are covered. The book discusses the relationship between chemical compounds and hormone activity. What are the health impacts of different chemical compounds for men and animals? How are these compounds entering in foodstuffs? Analysis of Endocrine Disrupting Compounds in Food offers the food professional what its title promises – a compendium of sample preparation and analysis techniques of possible endocrine disrupting compounds in food. Special Features: Uniquely concentrates on analysis and detection methods of EDCs in foodstuffs Extensive coverage of the main types of globally available analytical techniques and methodologies Fully detailed properties, sample procedures, and analysis steps for each EDC Renowned editor Leo Nollet leads a broad team of international experts
Author : Jared Anderson
Publisher : John Wiley & Sons
ISBN 13 : 3527333746
Total Pages : 2148 pages
Book Rating : 4.5/5 (273 download)
Download or read book Analytical Separation Science, 5 Volume Set written by Jared Anderson and published by John Wiley & Sons. This book was released on 2016-02-29 with total page 2148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endlich ein Forschungsleitfaden für Wissenschaftler des Fachgebiets, die neue Methoden entwickeln oder einsetzen. Dieses Handbuch umfasst fünf thematische Bände und bietet damit einen umfassenden Überblick über das Fachgebiet. Erläutert werden Grundlagen, die Methodenentwicklung und hochkarätige Anwendungen für alle wichtigen Analyseverfahren, darunter chromatische Verfahren, Techniken in den Bereichen Elektromigration und Membranen. Dieses Referenzwerk umfasst ein breites Spektrum und legt den Schwerpunkt auf Entwicklungen für die Zukunft. Damit ist es ein Muss für Forscher und eine wertvolle Wissensquelle für Studenten im Hauptstudium und Studienabsolventen.
Author : Leo M. L. Nollet
Publisher : CRC Press
ISBN 13 : 9780824750374
Total Pages : 898 pages
Book Rating : 4.7/5 (53 download)
Download or read book Handbook of Food Analysis: Residues and other food component analysis written by Leo M. L. Nollet and published by CRC Press. This book was released on 2004 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated to accommodate recent research and state-of-the-art technologies impacting the field, Volume 2: Residues and Other Food Component Analysis of this celebrated 3 volume reference compiles modern methods for the detection of residues in foods from pesticides, herbicides, antibacterials, food packaging, and other sources. Volume 2 evaluates methods for: establishing the presence of mycotoxins and phycotoxins identifying growth promoters and residual antibacterials tracking residues left by fungicides and herbicides discerning carbamate and urea pesticide residues confirming residual amounts of organochlorine and organophosphate pesticides detecting dioxin, polychlorobiphenyl (PCB), and dioxin-like PCB residues ascertaining n-nitroso compounds and polycyclic aromatic hydrocarbons tracing metal contaminants in foodstuffs
Author : Reinhard Nießner
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110432935
Total Pages : 369 pages
Book Rating : 4.1/5 (14 download)
Download or read book Organic Trace Analysis written by Reinhard Nießner and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-08-07 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Organic Trace Analysis" presents the basics of trace analysis, from sample preparation to the measurement: Students are introduced to statistical evaluation, quality control technologies, sampling and preparation of organic traces, as well as to enrichment and separation of samples. Spectroscopic techniques as chromatography, capillary electrophoresis, mass spectrometry, and receptor-based bioanalysis are presented in detail.
Author : Damia Barcelo
Publisher : Elsevier
ISBN 13 : 0080540694
Total Pages : 1151 pages
Book Rating : 4.0/5 (85 download)
Download or read book Sample Handling and Trace Analysis of Pollutants written by Damia Barcelo and published by Elsevier. This book was released on 2000-03-08 with total page 1151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an updated, completely revised version of a previous volume in this series entitled: ENVIRONMENTAL ANALYSIS -- Techniques, applications and quality assurance. The book treats different aspects of environmental analysis such as sample handling and analytical techniques, the applications to trace analysis of pollutants (mainly organic compounds), and quality assurance aspects, including the use of certified reference materials for the quality control of the whole analytical process. New analytical techniques are presented that have been developed significantly over the last 6 years, like solid phase microextraction, microwave-assisted extraction, liquid chromatography-mass spectrometric methods, immunoassays, and biosensors. The book is divided into four sections. The first describes field sampling techniques and sample preparation in environmental matrices: water, soil, sediment and biota. The second section covers the application areas which are either based on techniques, like the use of gas chromatography-atomic emission detection, immunoassays, or coupled-column liquid chromatography, or on specific application areas, like chlorinated compounds, pesticides, phenols, mycotoxins, phytotoxins, radionuclides, industrial effluents and wastes, including mine waste. Validation and quality assurance are described in the third section, together with the interpretation of environmental data using advanced chemometric techniques. The final section reports the use of somewhat advanced analytical methods, usually more expensive, less routinely used or less developed, for the determination of pollutants.
Author :
Publisher : Elsevier
ISBN 13 : 0444633812
Total Pages : 312 pages
Book Rating : 4.4/5 (446 download)
Download or read book Analysis of Marine Samples in Search of Bioactive Compounds written by and published by Elsevier. This book was released on 2014-08-26 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seas and oceans offer a wide range of temperature, pressure, light and chemical conditions thus allowing a wide diversity of marine organisms from shallow coastal waters to the deep ocean. These resources can be used to obtain new products and develop services, and in turn help to provide solutions to the challenges that affect our planet, including offering a sustainable supply of food and energy, new industrial materials and processes, new bioactive compounds, and new health treatments. Marine compounds have been identified as having antibacterial, anticoagulant, antifungal, antimalarial, antiprotozoal, antituberculosis, and antiviral activities. The major sources of these bioactive compounds are marine sponges, coelenterates, and microorganisms, followed by algae, echinoderms, tunicates, molluscs, and bryozoans. The discovery of bioactive compounds from marine samples is a hot topic considering the current need for sustainable use of marine resources. This book is a comprehensive overview of the analytical techniques employed in the discovery and characterization of bioactive compounds isolated from (all possible) marine samples and gives future perspectives of analytical methodologies. This overview includes an assessment of the sampling and preparation of extracts, the separation and isolation of bioactive compounds, their structural characterization and the application of bioassays in the discovery of bioactive compounds. - Comprehensive coverage of analytical techniques and applications - Clear diagrams to adequately support important topics - Real examples of applications of analytical techniques in the search for new bioactive compounds
Author :
Publisher : Elsevier
ISBN 13 : 008101984X
Total Pages : 5142 pages
Book Rating : 4.0/5 (81 download)
Download or read book Encyclopedia of Analytical Science written by and published by Elsevier. This book was released on 2019-04-02 with total page 5142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of the Encyclopedia of Analytical Science, Ten Volume Set is a definitive collection of articles covering the latest technologies in application areas such as medicine, environmental science, food science and geology. Meticulously organized, clearly written and fully interdisciplinary, the Encyclopedia of Analytical Science, Ten Volume Set provides foundational knowledge across the scope of modern analytical chemistry, linking fundamental topics with the latest methodologies. Articles will cover three broad areas: analytical techniques (e.g., mass spectrometry, liquid chromatography, atomic spectrometry); areas of application (e.g., forensic, environmental and clinical); and analytes (e.g., arsenic, nucleic acids and polycyclic aromatic hydrocarbons), providing a one-stop resource for analytical scientists. Offers readers a one-stop resource with access to information across the entire scope of modern analytical science Presents articles split into three broad areas: analytical techniques, areas of application and and analytes, creating an ideal resource for students, researchers and professionals Provides concise and accessible information that is ideal for non-specialists and readers from undergraduate levels and higher
Author : Semih Otles
Publisher : CRC Press
ISBN 13 : 1439815534
Total Pages : 531 pages
Book Rating : 4.4/5 (398 download)
Download or read book Methods of Analysis of Food Components and Additives written by Semih Otles and published by CRC Press. This book was released on 2011-11-16 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: With diet, health, and food safety news making headlines on a regular basis, the ability to separate, identify, and analyze the nutrients, additives, and toxicological compounds found in food and food components is more important than ever. This requires proper training in the application of best methods, as well as efforts to improve existing meth
