Capillary Gas Chromotography in Food Control and Research

Capillary Gas Chromotography in Food Control and Research
Author: R. Wittkowski
Publisher: CRC Press
Total Pages: 380
Release: 2020-12-17
Genre: Science
ISBN: 1000125130

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.

Principles and Applications of Gas Chromatography in Food Analysis

Principles and Applications of Gas Chromatography in Food Analysis
Author: Michael H. Gordon
Publisher: Springer Science & Business Media
Total Pages: 371
Release: 2013-03-08
Genre: Science
ISBN: 1461306817

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.

Qualitative Analysis of Flavor and Fragrance Volatiles by Glass Capillary Gas Chromatography

Qualitative Analysis of Flavor and Fragrance Volatiles by Glass Capillary Gas Chromatography
Author: Walter Jennings
Publisher: Elsevier
Total Pages: 481
Release: 2012-12-02
Genre: Technology & Engineering
ISBN: 0323141056

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.

Advanced Gas Chromatography in Food Analysis

Advanced Gas Chromatography in Food Analysis
Author: Peter Q Tranchida
Publisher: Royal Society of Chemistry
Total Pages: 492
Release: 2019-10-30
Genre: Science
ISBN: 1788011279

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.

Capillary Gas Chromatography

Capillary Gas Chromatography
Author: David W. Grant
Publisher:
Total Pages: 308
Release: 1996-03-19
Genre: Science
ISBN:

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.

Gas Chromatography with Glass Capillary Columns

Gas Chromatography with Glass Capillary Columns
Author: Walter Jennings
Publisher: Academic Press
Total Pages: 346
Release: 1980-04-28
Genre: Science
ISBN:

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.

HPLC in Food Analysis

HPLC in Food Analysis
Author: R. Macrae
Publisher:
Total Pages: 502
Release: 1988-01
Genre: Science
ISBN: 9780124647817

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.