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Author : Reiner Wittkowski
Publisher :
ISBN 13 : 9783860220375
Total Pages : 379 pages
Book Rating : 4.2/5 (23 download)
Download or read book Capillary Gas Chromatography in Food Control and Research written by Reiner Wittkowski and published by . This book was released on 1992 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Wittkowski
Publisher : CRC Press
ISBN 13 : 1000159957
Total Pages : 418 pages
Book Rating : 4.0/5 (1 download)
Download or read book Capillary Gas Chromotography in Food Control and Research written by R. Wittkowski and published by CRC Press. This book was released on 2020-12-18 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive survey on the possibilities, applications, and new developments of capillary gas chromatography for the complete range of examinations of food and raw material. It is intended for food scientists/chemists, food technologists, and nutritionists.
Author : R. Wittkowski
Publisher : CRC Press
ISBN 13 : 9781566760065
Total Pages : 300 pages
Book Rating : 4.7/5 (6 download)
Download or read book Capillary Gas Chromotography in Food Control and Research written by R. Wittkowski and published by CRC Press. This book was released on 1993-05-06 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Wittkowski
Publisher : CRC Press
ISBN 13 : 1000125130
Total Pages : 380 pages
Book Rating : 4.0/5 (1 download)
Download or read book Capillary Gas Chromotography in Food Control and Research written by R. Wittkowski and published by CRC Press. This book was released on 2020-12-17 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive survey on the possibilities, applications, and new developments of capillary gas chromatography for the complete range of examinations of food and raw material. It is intended for food scientists/chemists, food technologists, and nutritionists.
Author : Michael H. Gordon
Publisher : Springer Science & Business Media
ISBN 13 : 1461306817
Total Pages : 371 pages
Book Rating : 4.4/5 (613 download)
Download or read book Principles and Applications of Gas Chromatography in Food Analysis written by Michael H. Gordon and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: The food analyst plays an important role in modern society. Stricter control over additives in food and concern about the effects of contamination of food by industrial and agricultural chemicals are among the developments which are leading to an increasing emphasis on detailed and accurate analysis of food. However. analysis of food is required for many reasons, including detection of toxic components, monitoring legislation, detecting adulteration, formulation of controlled diets, controlling formulation during product development and detecting changes in food during storage and processing. Foods comprise a complex mixture of components and food analysis requires efficient methods of separation with high sensitivity or specificity of detection. Although many food components are involatile or thermally labile and therefore not suitable for analysis by gas chromatography, other components are volatile and this technique is the preferred analytical method. Developments in methods of derivati zation, injector design and column technology have also extended the applicability of gas chromatography to the analysis of relatively involatile compounds.
Author : Lothar Matter
Publisher : John Wiley & Sons
ISBN 13 : 3527612548
Total Pages : 190 pages
Book Rating : 4.5/5 (276 download)
Download or read book Food and Environmental Analysis by Capillary Gas Chromatography written by Lothar Matter and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter Jennings
Publisher : Elsevier
ISBN 13 : 0323141056
Total Pages : 481 pages
Book Rating : 4.3/5 (231 download)
Download or read book Qualitative Analysis of Flavor and Fragrance Volatiles by Glass Capillary Gas Chromatography written by Walter Jennings and published by Elsevier. This book was released on 2012-12-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Qualitative Analysis of Flavor and Fragrance Volatiles by Glass Capillary Gas Chromatography deals with the application of glass capillary gas chromatography to qualitative analysis of flavor and fragrance volatiles. Topics range from gas chromatographic system requirements and retention indices to selective detectors, ancillary reactions, and gas chromatography-mass spectrometry. This text is comprised of six chapters; the first of which provides an overview of the use of glass capillary gas chromatography in qualitative analysis of flavor and fragrance volatiles. The discussion then turns to gas chromatographic system requirements with respect to columns, inlets, detectors, and temperature control. The reader is also introduced to the Kovats retention index system, which utilizes a logarithmic scale to describe the retention behavior of a compound relative to that of the n-paraffin hydrocarbons. The use of selective detectors, such as thermal conductivity, flame ionization, nitrogen-phosphorus, electron capture, and photoionization detectors in qualitative analysis, is also considered. The final two chapters focus on ancillary reactions in glass capillary gas chromatography and general considerations in gas chromatography-mass spectrometry, including interfacing. This book is intended primarily for researchers involved in studies of the volatile constituents of fragrances, food, and natural products.
Author : Peter Q Tranchida
Publisher : Royal Society of Chemistry
ISBN 13 : 1788011279
Total Pages : 492 pages
Book Rating : 4.7/5 (88 download)
Download or read book Advanced Gas Chromatography in Food Analysis written by Peter Q Tranchida and published by Royal Society of Chemistry. This book was released on 2019-10-30 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography is widely used in applications involving food analysis. Typical applications pertain to the quantitative and/or qualitative analysis of food composition, natural products, food additives, and flavour and aroma components. Providing an up-to-date look at the significant advances in the technology, this book includes details on novel sample preparation processes; conventional, high-speed multidimensional gas chromatography systems, including preparative instrumentation; gas chromatography–olfactometry principles; and, finally, chemometrics principles and applications in food analysis. Aimed at providing the food researcher or analyst with detailed analytical information related to advanced gas chromatography technologies, this book is suitable for professionals and postgraduate students learning about the technique in the food industry and research.
Author : David W. Grant
Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.:/5 (319 download)
Download or read book Capillary Gas Chromatography written by David W. Grant and published by . This book was released on 1996-03-19 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical techniques based on separation processes, such as chromatography and electrophoresis, are finding a growing range of applications in chemical, pharmaceutical and clinical laboratories. This series provides the analyst in these laboratories with well focused books covering individual techniques, so that they can be applied more efficiently and effectively to contemporary analytical problems. Capillary gas chromatography is one of the most powerful separation tools available to analysts working in a wide diversity of disciplines. Capillary Gas Chromatography will give practising analysts a sound theoretical and practical knowledge of the subject, giving a thorough account of the many fascinating and important developments occurring in the field in recent years. The theory is presented with practical applications in mind. Common problems encountered when using this technique, and the means of overcoming them are also presented. Capillary Gas Chromatography will be of great practical use to analytical chemists using the technique, including those in the pharmaceutical, food and beverage, environmental, clinical, and petrochemical industries. It will also be invaluable for graduate students and researchers involved in the need to separate complex mixtures.
Author : Walter Jennings
Publisher : Academic Press
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.:/5 (44 download)
Download or read book Gas Chromatography with Glass Capillary Columns written by Walter Jennings and published by Academic Press. This book was released on 1980-04-28 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The glass capillary column; Column coating; Inlet systems; Column installation; Measuring column efficiency; Treatment of retention data; Temperature programming and carrier flow considerations; Special analytical methods in glass capillary gas chromatography; Column stability; Column selection; Sample preparation; Analysis of materials of restricted volatility; Instrument conversion; Applications of glass capillary gas chromatography; Fault diagnosis.
Author : Tibor Cserhati
Publisher : CRC Press
ISBN 13 : 1000117243
Total Pages : 568 pages
Book Rating : 4.0/5 (1 download)
Download or read book Chromatography in Food Science and Technology written by Tibor Cserhati and published by CRC Press. This book was released on 2020-08-26 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: oCompilation and evaluation of the newest applications of chromatography for food science and technology oEnumeration of chromatographic methods and critical discussion of results This book presents a unique collection of up-to-date chromatographic methods for the separation and quantitative determination of carbohydrates, lipids, proteins, peptides, amino acids, vitamins, aroma and flavor compounds in a wide variety of foods and food products. Chromatography in Food Science and Technology presents a concise evaluation of existing chromatographic methods used for many food and food product macro and microcomponents. Chromatographic methods are compiled according to the character of the food components to be separated. The book's chapters deal separately with the different classes of food components, presenting both gas and liquid chromatographic methods used for their determination, and discussing the advantages and disadvantages of each. Unlike other references, Chromatography in Food Science and Technology is entirely devoted to the use of chromatography for food analysis, and focuses on practical, food-related examples. It treats the theoretical aspects of chromatography briefly, to the degree that the information helps the use and development of new analytical methods for the separation of any kind of food components.
Author : Edwin N. Frankel
Publisher : Elsevier
ISBN 13 : 085709792X
Total Pages : 487 pages
Book Rating : 4.8/5 (57 download)
Download or read book Lipid Oxidation written by Edwin N. Frankel and published by Elsevier. This book was released on 2014-01-23 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this second edition, Edwin Frankel has updated and extended his now well-known book Lipid oxidation which has come to be regarded as the standard work on the subject since the publication of the first edition seven years previously. His main objective is to develop the background necessary for a better understanding of what factors should be considered, and what methods and lipid systems should be employed, to achieve suitable evaluation and control of lipid oxidation in complex foods and biological systems. The oxidation of unsaturated fatty acids is one of the most fundamental reactions in lipid chemistry. When unsaturated lipids are exposed to air, the complex, volatile oxidation compounds that are formed cause rancidity. This decreases the quality of foods that contain natural lipid components as well as foods in which oils are used as ingredients. Furthermore, products of lipid oxidation have been implicated in many vital biological reactions, and evidence has accumulated to show that free radicals and reactive oxygen species participate in tissue injuries and in degenerative disease. Although there have been many significant advances in this challenging field, many important problems remain unsolved. This second edition of Lipid oxidation follows the example of the first edition in offering a summary of the many unsolved problems that need further research. The need to understand lipid oxidation is greater than ever with the increased interest in long-chain polyunsaturated fatty acids, the reformulation of oils to avoid hydrogenation and trans fatty acids, and the enormous attention given to natural phenolic antioxidants, including flavonoids and other phytochemicals.
Author : R. Macrae
Publisher :
ISBN 13 : 9780124647817
Total Pages : 502 pages
Book Rating : 4.6/5 (478 download)
Download or read book HPLC in Food Analysis written by R. Macrae and published by . This book was released on 1988-01 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory and practice of HPLC; Applications of HPLC to food analysis; Determination of carborydrates; The analysis of lipids by HPLC; Determination of vitamins; Determination of food additives by HPLC; Determination of synthetic food colours by HPLC; HPLC of natural pigments in foodstuffs; Determination of mycotoxins; Determination of polynuclear aromatic hydrocarbons and nitrosamines; Determination of pesticide residues; Determination of amino acids; liquid chromatography/mass spectrometry.
Author : Pat Sandra
Publisher :
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (89 download)
Download or read book Capillary Gas Chromatography in Essential Oil Analysis written by Pat Sandra and published by . This book was released on 1987 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to essential oil analysis. some aspects of essential oil preparation. considerations on the selection of cappilary columns for essential oil analysis. microtechniques in essential oil analysis. headscape versus classical analysis. Fingerprints in essential oil analysis. industrial quality control of essential oil by capillary GC. Retention indices in essential oil analysis. Possibilities and results of dual channel analysis of essential oils with fused silica capillaru columns. GC- mass specytrometry of essential oils: positive ion and negative ion and negative ion chemical ionazation techniques,computer matching techniques. Examples of artefact formation by chromatographic techniques. Possibilities, limitations, and future develpments in GC-FTIR analysis of essential oils. Possibilities of multidimensional GC in essential oils.
Author : Walter Jennings
Publisher : CRC Press
ISBN 13 : 9780824712235
Total Pages : 644 pages
Book Rating : 4.7/5 (122 download)
Download or read book Applications of Glass Capillary Gas Chromatography written by Walter Jennings and published by CRC Press. This book was released on 1981-08-01 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter Jennings
Publisher : Academic Press
ISBN 13 : 0080527205
Total Pages : 402 pages
Book Rating : 4.0/5 (85 download)
Download or read book Analytical Gas Chromatography written by Walter Jennings and published by Academic Press. This book was released on 1997-09-25 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography remains the world's most widely used analytical technique, yet the expertise of a large proportion of chromatographers lies in other fields. Many users have little real knowledge of the variablesin the chromatographic process, the interaction between those variables, how they are best controlled, how the quality of their analytical results could be improved, and how analysis times can be shortened to facilitate the generation of a greater numberof more reliable results on the same equipment. An analyst with a more comprehensive understanding of chromatographic principles and practice, however, can often improve the quality of the data generated, reduce the analytical time, and forestall the needto purchase an additional chromatograph or another mass spectrometer. The Second Edition of Analytical Gas Chromatography is extensively revised with selected areas expanded and many new explanations and figures. The section on sample injection has been updated to include newer concepts of split, splitless, hot and cold on-column, programmed temperature vaporization, and large volume injections. Coverage of stationary phases now includes discussion, applications, and rationale of the increased thermal and oxidative resistance of the newly designed silarylenepolysiloxane polymers. Conventional and"extended range"polyethylene glycol stationary phases are examined from the viewpoints of temperature range and retention index reliabilities, and the chapter on"Variables"has been completely rewritten. The ways in which carrier gas velocity influences chromatographic performance is considered in detail, and includes what may be the first rational explanation of the seemingly anomalous effects that temperature exercises on gas viscosity (and gas flow). The practical effects that these changes cause to the chromatography is examined in pressure-, flow-, and"EPC-"regulated systems."Column Selection, Installation, and Use"has been completely rewritten as well. The accuracy of theVan Deemter plots has been greatly enhanced; a new program corrects for the first time for the changes in gas density and diffusion that occur during the chromatographic process because of solute progression through the pressure drop of the column. A new section has also been added on meeting thespecial requirements of columns destined for mass spectral analysis. The chapter on"Special Applications"has been expanded to include considerations of"selectivity tuning,"of fast analysis, and the section of Applications has been thoroughly updated and expanded. - Incorporates nearly 60% new material - Covers the newest concepts and materials for sample injection and stationary phases - Presents detailed consideration of the influence of carrier gas velocity on practical aspects of chromatographic performance - Contains a chapter on "Special Analytical Techniques" which includes consideration of selectivity tuning and fast analysis - Provides a new section addressing the special requirements of columns to be used in mass spectral analysis - Includes an improved program that greatly enhances the accuracy of the Van Deemter plots by more accurately depicting localized chromatographic conditions at each point in the column
Author : Oscar Nunez
Publisher : World Scientific
ISBN 13 : 1786349930
Total Pages : 533 pages
Book Rating : 4.7/5 (863 download)
Download or read book Chromatographic And Related Separation Techniques In Food Integrity And Authenticity (A 2-volume Set) written by Oscar Nunez and published by World Scientific. This book was released on 2021-06-24 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food manufacturers, researchers and society in general are increasingly highly interested in the quality and origin of food products. Considering the complexity of the food chain in a globalized world — where many players are involved between production and consumption — fraudulent food manipulation and adulteration practices are increasingly easier to conduct without being detected. Generally, food adulteration is carried out to increase volume, to mask the presence of inferior quality components, and to replace authentic substances for the seller's economic gain. Analytical methodologies to guarantee food integrity and authenticity are therefore required.Chromatographic and Related Separation Techniques in Food Integrity and Authenticity — Volume A: Advances in Chromatographic Techniques addresses fraud prevention and the latest chromatographic and related separation analytical techniques to guarantee food integrity and authenticity by giving special attention to relevant authenticity issues in food production.Chromatographic and Related Separation Techniques in Food Integrity and Authenticity — Volume B: Relevant Applications addresses the relevant application of techniques to assess different food products' integrity and authenticity.
