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Author: Gunter Zweig
Publisher: Elsevier
ISBN: 1483220834
Category : Science
Languages : en
Pages : 802
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Book Description
Analytical Methods for Pesticides and Plant Growth Regulators, Volume VI: Gas Chromatographic Analysis covers the topics pesticide analyses by gas chromatography. The book discusses the sample preparation, detectors, qualitative analyses, and formulation analyses, as well as gas chromatography of different classes of pesticides. The text also provides general information concerning specific insecticides, fungicides, herbicides, plant growth regulators, nematicides and soil fumigants, as well as analytical techniques other than gas chromatography. Toxicologists and people involved in agricultural research will find the book invaluable.
Author: Gunter Zweig
Publisher: Elsevier
ISBN: 1483220834
Category : Science
Languages : en
Pages : 802
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Book Description
Analytical Methods for Pesticides and Plant Growth Regulators, Volume VI: Gas Chromatographic Analysis covers the topics pesticide analyses by gas chromatography. The book discusses the sample preparation, detectors, qualitative analyses, and formulation analyses, as well as gas chromatography of different classes of pesticides. The text also provides general information concerning specific insecticides, fungicides, herbicides, plant growth regulators, nematicides and soil fumigants, as well as analytical techniques other than gas chromatography. Toxicologists and people involved in agricultural research will find the book invaluable.
Author: Michael H. Gordon
Publisher: Springer Science & Business Media
ISBN: 1461306817
Category : Science
Languages : en
Pages : 371
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Book Description
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: Katja Dettmer-Wilde
Publisher: Springer
ISBN: 3642546404
Category : Science
Languages : en
Pages : 904
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Book Description
Gas chromatography continues to be one of the most widely used analytical techniques, since its applications today expand into fields such as biomarker research or metabolomics. This new practical textbook enables the reader to make full use of gas chromatography. Essential fundamentals and their implications for the practical work at the instrument are provided, as well as details on the instrumentation such as inlet systems, columns and detectors. Specialized techniques from all aspects of GC are introduced ranging from sample preparation, solvent-free injection techniques, and pyrolysis GC, to separation including fast GC and comprehensive GCxGC and finally detection, such as GC-MS and element-specific detection. Various fields of application such as enantiomer, food, flavor and fragrance analysis, physicochemical measurements, forensic toxicology, and clinical analysis are discussed as well as cutting-edge application in metabolomics is covered.
Author: Viktor Grigorʹevich Berezkin
Publisher:
ISBN:
Category : Gas chromatography
Languages : en
Pages : 188
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Book Description
Gas-chromatographic separation in impurity analysis. Use of large samples in impurity analysis. Gas-chromatographic detectors. Use of selective sorbents and selective detectors. Nonisothermal methods in impurity analysis. Reactive analytical gas chromatography. Accumulation methods. Some aspects of quantitative analysis. Basic methods of preparing standard mixtures.
Author: Leo Marcellus Walsh
Publisher: Wiley-Blackwell
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 246
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Book Description
Use of Automated Combustion Techniques for Total Carbon Total Nitrogen and Total Sulfur Analysis of Soils1 -- Fluorometry and Nephelometry: Techniques and Uses in Soil Plant and Water Analysis -- Gas Chromatography: Techniques and Uses in Soil Plant and Water Analysis1 -- Atomic Absorption and Flame Photometry: Techniques and Uses in Soil Plant and Water Analysis -- Neutron Activation: Techniques and Possible Uses in Soil and Plant Analysis -- Electron Microprobe: Techniques and Uses in Soil and Plant Analysis1 -- Specific Ion Electrodes: Techniques and Uses in Soil Plant and Water Analysis -- X-Ray Emission Spectrograph: Techniques and Uses for Plant and Soil Studies1 -- Simultaneous Determinations of Phosphorus Potassium Calcium and Magnesium in Wet Digestion Solutions of Plant Tissue by AutoAnalyzer1 -- Determination of Phosphorus Potassium Calcium and Magnesium Simultaneously in North Carolina Ammonium Acetate and Bray P1 Soil Extracts by AutoAnalyzer1 -- Front Matter.
Author: Viktor G. Berezkin
Publisher: Springer Science & Business Media
ISBN: 1468407090
Category : Science
Languages : en
Pages : 199
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Book Description
The most universal and effective method for the analysis of complex multicomponent mixtures of volatile substances is gas chromatography. However, there are a number of limitations asso ciated with the classical variation of this technique which retard its development and the further expansion of its application: 1) the identification of the components of a complex mix ture of unknown composition is in itself a complex and difficult problem, unless the homologous series of the component to be identified is known; 2) the overlapping of chromatographic peaks for several compounds makes it difficult, and in a number of cases impossible, to carry out qualitative and quantitative analysis of these components, and leads to the necessity of using several columns of different polarities or to the use of columns with very high efficiency; 3) the direct analysis of unstable and nonvolatile compounds is impossible; 4) the difficulty of quantitative chromatographic analysis using thermal conductivity detectors increases with the necessity of determining individual response (calibration) factors; the insensitivity of the flame ionization detector to a number of substances (inorganic gases) leads to the necessity of introducing additional operations (prelimi nary concentration of trace components) in connection with thermal conductivity detectors. vii viii FOREWORD The directed use of chemical conversion of the compounds analyzed usually makes it possible to remove the limitations cited above.
Author: V G Berezkin
Publisher: Springer
ISBN: 9781468416008
Category :
Languages : en
Pages : 192
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Book Description
Author: Harold M. McNair
Publisher: John Wiley & Sons
ISBN: 1118211200
Category : Science
Languages : en
Pages : 195
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Book Description
The New Edition of the Well-Regarded Handbook on Gas Chromatography Since the publication of the highly successful first edition of Basic Gas Chromatography, the practice of chromatography has undergone several notable developments. Basic Gas Chromatography, Second Edition covers the latest in the field, giving readers the most up-to-date guide available, while maintaining the first edition's practical, applied approach to the subject and its accessibility to a wide range of readers. The text provides comprehensive coverage of basic topics in the field, such as stationary phases, packed columns and inlets, capillary columns and inlets, detectors, and qualitative and quantitative analysis. At the same time, the coverage also features key additions and updated topics including: Gas chromatography-mass spectrometry (GC-MS) Sampling methods Multidimensional gas chromatography Fast gas chromatography Gas chromatography analysis of nonvolatile compounds Inverse gas chromatography and pyrolysis gas chromatography Along with these new and updated topics, the references, resources, and Web sites in Basic Gas Chromatography have been revised to reflect the state of the field. Concise and fundamental in its coverage, Basic Gas Chromatography, Second Edition remains the standard handbook for everyone from undergraduates studying analytical chemistry to working industrial chemists.
Author: Walter Jennings
Publisher: Elsevier
ISBN: 0323141056
Category : Technology & Engineering
Languages : en
Pages : 481
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Book Description
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: Diane C. Turner
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
