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Author : Andrew Tipler
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (986 download)
Download or read book The PreVent System and Its Applications in Open-tubular Column Gas Chromatography written by Andrew Tipler and published by . This book was released on 1997 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Therese Phyllis Tetu
Publisher :
ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.:/5 (152 download)
Download or read book Applications of Open Tubular Columns to the Gas Chromatography of Volatile Metal Complexes written by Therese Phyllis Tetu and published by . This book was released on 1979 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. Guiochon
Publisher : Elsevier
ISBN 13 : 0080858473
Total Pages : 811 pages
Book Rating : 4.0/5 (88 download)
Download or read book Quantitative Gas Chromatography for Laboratory Analyses and On-Line Process Control written by G. Guiochon and published by Elsevier. This book was released on 1988-06-01 with total page 811 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is an invaluable new book on quantitative gas chromatography which explains how the method can - or should - be used for accurate and precise analysis. Gas chromatography is firmly established as one of the few major methods for the quantitative analysis of complex mixtures. It is fast, accurate and inexpensive, with a broad range of applications. It has however become very complex and involved: over 200 stationary phases, more than 10 detector principles and several very different column types are available from among the catalogs of over 100 manufacturers and major retailers. The progressive changes in the nature of gas chromatography have created new needs for information which are not satisfied by the literature presently available.This book provides a complete discussion of all the problems involved in the achievement of quantitative analysis by gas chromatography, whether in the research laboratory, in the routine analysis laboratory or in process control. For this reason the presentation of theoretical concepts has been limited to the essential, while extensive explanations have been devoted to the various steps involved in the derivation of precise and accurate data. This starts with the selection of the instrumentation and column, continues with the choice of optimum experimental conditions, then calibration and ends with the use of correct procedures for data acquisition and calculations. Finally, there is almost always a way to reduce errors and an entire chapter deals with this single issue. Numerous relevant examples are presented.The first part of the book presents the theoretical background, simple enough to be understood by all analytical chemists, but still complete and up-to-date. It discusses the problems of flow dynamics, retention and band broadening. The changes in band profile associated with column overloading are explained without much recourse to mathematics. The second part describes the gas chromatograph and discusses the properties of each of its parts: gas flow and pressure controller sampling system, oven, column switching valves, detectors. The different implementations, their advantages and drawbacks are discussed and compared. In addition, three chapters present packed column technology, open tubular column technology and some sophisticated new phase systems, respectively. The new phase systems described use adsorbents, modified by coating or grafting organic phase, and carrier gases containing vapors which are sorbed by the stationary phase and modify it, such as steam. The third part discusses the applications in qualitative and quantitative analysis. Calibration, peak integration, sources of errors arising from the various parts of the instrument as well as from the measurement process itself are carefully described in four detailed chapters. Methods to carry out accurate and precise analysis are presented. A last chapter is devoted to process control analysis and gives a number of detailed examples of applications. A lexicon explaining the most important chromatographic terms and a detailed index complete the book.This is a book which no chemical analyst should be without. It should be on the library shelf of all universities, instrument companies and any laboratory and plant where gas chromatography is used.
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 : Leslie S. Ettre
Publisher : Springer Science & Business Media
ISBN 13 : 1468406884
Total Pages : 176 pages
Book Rating : 4.4/5 (684 download)
Download or read book Open Tubular Columns in Gas Chromatography written by Leslie S. Ettre and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: For my past sins, Leslie Ettre has given me the privilege of writing a few words to preface his excellent little book. It gives me great pleasure to do so, because of the many years of fruitful collabo ration we have had at Perkin-Elmer, because it is refreshing to see a treatise in gas chromatography in which the theoretical treatment has been bared to its essentials, without a mushrooming of formulae which, by means of an ever increasing number of parameters, account for more and more, and explain less and less, and because the author has recognized that the gas chromatographic column is a nearly passive element in its own right which deserves to have a treatise written nearly exclusively about it, just as electrical circuit theory can be discussed without elaborate references to vacuum tubes and meters. I wish this conscientiously written volume the success it deserves. M. J. E. GOLAY VII Preface Gas chromatography is a separation technique used primarily in analytical chemistry. Therefore, it is evident that special emphasis should be placed on that particular part of the apparatus in which the separation takes place. This part is the column, the heart of the gas chromatograph. The goal of researchers in the field of gas chromatography has been-from the beginning-to understand the separation process so that they might design columns with the best possible performance. Such investigation led M. J. E.
Author : Francis Onuska
Publisher : Springer Science & Business Media
ISBN 13 : 1468446886
Total Pages : 291 pages
Book Rating : 4.4/5 (684 download)
Download or read book Open Tubular Column Gas Chromatography in Environmental Sciences written by Francis Onuska and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. F. Poole
Publisher : Elsevier
ISBN 13 : 9780444501981
Total Pages : 940 pages
Book Rating : 4.5/5 (19 download)
Download or read book The Essence of Chromatography written by C. F. Poole and published by Elsevier. This book was released on 2003 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: General concepts in column chromatography -- The column in gas chromatography -- Instrumental aspects of gas chromatography -- The column in liquid chromatography -- Instrumental aspects of liquid chromatography -- Thin-layer chromatography -- Supercritical fluid chromatography -- Capillary-electromigration separation techniques -- Spectroscopic detectors for identification and quantification -- Separation of stereoisomers -- Laboratory-scale preparative chromatography.
Author : Haleem J. Issaq
Publisher : CRC Press
ISBN 13 : 9780824705763
Total Pages : 782 pages
Book Rating : 4.7/5 (57 download)
Download or read book A Century of Separation Science written by Haleem J. Issaq and published by CRC Press. This book was released on 2001-12-19 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Century of Separation Science presents an extensive overview of the critical developments in separation science since 1900, covering recent advances in chromatography, electrophoresis, field-flow fractionation, countercurrent chromatography, and supercritical fluid chromatography for high-speed and high-throughput analysis.
Author : Milton L. Lee
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (44 download)
Download or read book Open Tubular Column Gas Chromatography written by Milton L. Lee and published by Wiley-Interscience. This book was released on 1984-01-20 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York : Wiley, c1984.
Author : Matthew S. Klee
Publisher : Hewlett-Packard, Avondale Division
ISBN 13 : 9781880313008
Total Pages : 132 pages
Book Rating : 4.3/5 (13 download)
Download or read book GC Inlets written by Matthew S. Klee and published by Hewlett-Packard, Avondale Division. This book was released on 1990-02-01 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie S. Ettre
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (91 download)
Download or read book Introduction to Open Tubular Columns written by Leslie S. Ettre and published by . This book was released on 1978 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dean Rood
Publisher : John Wiley & Sons
ISBN 13 : 3527611312
Total Pages : 344 pages
Book Rating : 4.5/5 (276 download)
Download or read book The Troubleshooting and Maintenance Guide for Gas Chromatographers written by Dean Rood and published by John Wiley & Sons. This book was released on 2007-09-24 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth edition of the classic guide for every user of gas chromatographic instrumentation is now updated to include such new topics as fast GC using narrow, short columns, electronic pressure control, and basic aspects of quantitative gas chromatography. The author shares his many years of experience in technical support for gas chromatography users, addressing the most common problems, questions and misconceptions in capillary gas chromatography. He structures and presents the material in a concise and practical manner, suitable even for the most inexperienced user without any detailed knowledge of chemistry or chromatography. For lab technicians in chemistry, analytical, food, medicinal and environmental chemists, pharmaceutists.
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 : Rosalind Wolstenholme
Publisher : John Wiley & Sons
ISBN 13 : 1119033829
Total Pages : 464 pages
Book Rating : 4.1/5 (19 download)
Download or read book Analytical Techniques in Forensic Science written by Rosalind Wolstenholme and published by John Wiley & Sons. This book was released on 2020-10-29 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth text that explores the interface between analytical chemistry and trace evidence Analytical Techniques in Forensic Science is a comprehensive guide written in accessible terms that examines the interface between analytical chemistry and trace evidence in forensic science. With contributions from noted experts on the topic, the text features a detailed introduction analysis in forensic science and then subsequent chapters explore the laboratory techniques grouped by shared operating principles. For each technique, the authors incorporate specific theory, application to forensic analytics, interpretation, forensic specific developments, and illustrative case studies. Forensic techniques covered include UV-Vis and vibrational spectroscopy, mass spectrometry and gas and liquid chromatography. The applications reviewed include evidence types such as fibers, paint, drugs and explosives. The authors highlight data collection, subsequent analysis, what information has been obtained and what this means in the context of a case. The text shows how analytical chemistry and trace evidence can problem solve the nature of much of forensic analysis. This important text: Puts the focus on trace evidence and analytical science Contains case studies that illustrate theory in practice Includes contributions from experts on the topics of instrumentation, theory, and case examples Explores novel and future applications for analytical techniques Written for undergraduate and graduate students in forensic chemistry and forensic practitioners and researchers, Analytical Techniques in Forensic Science offers a text that bridges the gap between introductory textbooks and professional level literature.
Author : Goran Odham
Publisher : Springer Science & Business Media
ISBN 13 : 146844526X
Total Pages : 452 pages
Book Rating : 4.4/5 (684 download)
Download or read book Gas Chromatography Mass Spectrometry Applications in Microbiology written by Goran Odham and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: During recent years there has been increasing interest in the value of a number of chemical and physical-chemical analytical methods for the detection and characterization of microorganisms. Furthermore, such methods are currently used in studies on microbial metabolic processes, on the role of microorganisms in the turnover of inorganic and organic compounds, and on the impact on environmental changes by microbial activity. Moreover, the introduction of some of these methods not only shortens the analytical time period compared to ยท'traditional" techniques, but also improves the analytical quality. Mass spectrometry (MS) combined with chromatographic inlet systems, particularly gas chromatography (GC), belongs to those methods which during recent years have established their value for the above-mentioned purposes. The present volume starts with basic chapters on the principles for MS and common inlet systems, particulary Gc. It discusses applications of these techniques to a number of microbiological disciplines, e.g., ecologi cal and medical microbiology. Emphasis is laid on organic compound classes vii viii / PREFACE of special relevance to microbiology, e.g., volatiles, lipids, amino acids, peptides and carbohydrates. Some compound classes of a more general biochemical rather than specific microbiological importance, e.g., steroids and nucleotides, are dealt with briefly. The editors wish to thank all those who have contributed to this book. We hope it will stimulate further research in this futuristic field and will be of practical value.
Author : Jack Cazes
Publisher : CRC Press
ISBN 13 : 9780824705114
Total Pages : 970 pages
Book Rating : 4.7/5 (51 download)
Download or read book Encyclopedia of Chromatography (Print) written by Jack Cazes and published by CRC Press. This book was released on 2001-06-29 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical, single-volume source collects up-to-date information on chromatographic techniques and methodologies for the solution of analytical and preparative problems applicable across a broad spectrum of disciplines including biotechnology, pharmaceuticals, environmental sciences, polymers, food additives and nutrients, pathology, toxicology, fossil fuels, and nuclear chemistry. It highlights real-world applications, easy-to-read fundamentals of problem solving and material identification methods, and detailed references. Written by over 180 esteemed international authorities and containing over 300 chapters, 2600 works cited, and 1000 drawings, equations, tables, and photographs, the Encyclopedia of Chromatography covers high-performance liquid, thin-layer, gas, affinity, countercurrent, supercritical fluid, gel permeation, and size exclusion chromatographies as well as capillary electrophoresis, field-flow fractionation, hyphenated techniques, and more. PRINT/ONLINE PRICING OPTIONS AVAILABLE UPON REQUEST AT [email protected]
Author : H. Rotzsche
Publisher : Elsevier
ISBN 13 : 0080858554
Total Pages : 425 pages
Book Rating : 4.0/5 (88 download)
Download or read book Stationary Phases in Gas Chromatography written by H. Rotzsche and published by Elsevier. This book was released on 1991-08-21 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary aim of this volume is to make the chemist familiar with the numerous stationary phases and column types, with their advantages and disadvantages, to help in the selection of the most suitable phase for the type of analytes under study. The book also provides detailed information on the chemical structure, physico-chemical behaviour, experimental applicability, physical data of liquid and solid stationary phases and solid supports. Such data were previously scattered throughout the literature. To understand the processes occurring in the separation column and to offer a manual both to the beginner and to the experienced chromatographer, one chapter is devoted to the basic theoretical aspects. Further, as the effectiveness of the stationary phase can only be considered in relation to the column type, a chapter on different column types and the arrangement of the stationary phase within the column is included. The secondary aim of this book is to stimulate the development of new and improved standardized stationary phases and columns, in order to improve the reproducibility of separations, as well as the range of applications.
