Advanced Gas Chromatography, Adrianna Coty

Автор: Michael H. Gordon
Название: Principles and Applications of Gas Chromatography in Food Analysis
ISBN: 1461280249 ISBN-13(EAN): 9781461280248
Издательство: Springer
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Цена: 81050.00 T
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Описание: 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.

Автор: Kusch Peter
Название: Pyrolysis-gas Chromatography: Mass Spectrometry Of Polymeric
ISBN: 1786345757 ISBN-13(EAN): 9781786345752
Издательство: World Scientific Publishing
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Цена: 105600.00 T
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Описание:

The methodology of analytical pyrolysis-GC/MS has been known for several years, but is seldom used in research laboratories and process control in the chemical industry. This is due to the relative difficulty of interpreting the identified pyrolysis products as well as the variety of them. This book contains full identification of several classes of polymers/copolymers and biopolymers that can be very helpful to the user. In addition, the practical applications can encourage analytical chemists and engineers to use the techniques explored in this volume.

The structure and the functions of various types of pyrolyzers and the results of the pyrolysis-gas chromatographic-mass spectrometric identification of synthetic polymers/copolymers and biopolymers at 700 C are described. Practical applications of these techniques are also included, detailing the analysis of microplastics, failure analysis in the automotive industry and solutions for technological problems.

Автор: Adrianna Coty
Название: Applications of Gas Chromatography
ISBN: 1681172623 ISBN-13(EAN): 9781681172620
Издательство: Gazelle Book Services
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Цена: 217350.00 T
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Описание: Gas chromatography is a term used to describe the group of analytical separation techniques used to analyse volatile substances in the gas phase. In gas chromatography, the components of a sample are dissolved in a solvent and vaporised in order to separate the analyses by distributing the sample between two phases: a stationary phase and a mobile phase. The mobile phase is a chemically inert gas that serves to carry the molecules of the analyse through the heated column. Gas chromatography is one of the sole forms of chromatography that does not utilise the mobile phase for interacting with the analyse. The stationary phase is either a solid adsorbent, termed gas-solid chromatography (GSC), or a liquid on an inert support, termed gas-liquid chromatography (GLC). Helium remains the most commonly used carrier gas in about 90% of instruments although hydrogen is preferred for improved separations. This inert gas goes through a glass column packed with silica that is coated with a liquid. Materials that are less soluble in the liquid will increase the result faster than the material with greater solubility. The purpose of this book is to provide a better understanding on its separation and measurement techniques and its application. Since chromatography techniques are separating and analysing methods, this book will help other researchers and young scientists to choose a suitable chromatography technique. Furthermore, this book illustrates the newest challenges in this area. This valuable book aims to provide a connection between various chromatography techniques and different processes.

Автор: Staby
Название: Preparative Chromatography for Separation of Proteins
ISBN: 1119031109 ISBN-13(EAN): 9781119031109
Издательство: Wiley
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Цена: 171020.00 T
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Описание: Preparative Chromatography for Separation of Proteins addresses a wide range of the most current modeling techniques, strategies, and case studies of industrial separation of proteins and peptides to aid in the efficiency and efficacy of this broadly-used technique in the purification of biopharmaceuticals.

Автор: Federico Noguerra
Название: Gas Chromatography in Plant Science, Wine Technology, Toxicology & Some Specific Applications
ISBN: 1681175908 ISBN-13(EAN): 9781681175904
Издательство: Gazelle Book Services
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Цена: 230210.00 T
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Описание: Gas Chromatography (GC) is a commonly used analytic technique in many research and industrial laboratories for quality control as well as identification and quantitation of compounds in a mixture. GC is also a frequently used technique in many environmental and forensic laboratories because it allows for the detection of very small quantities. A broad variety of samples can be analysed as long as the compounds are sufficiently thermally stable and reasonably volatile. Like for all other chromatographic techniques, a mobile and a stationary phase are required for this technique. The mobile phase (or "moving phase") is a carrier gas, usually an inert gas such as helium or an unreactive gas such as nitrogen. Helium remains the most commonly used carrier gas in about 90% of instruments although hydrogen is preferred for improved separations. The stationary phase is a microscopic layer of liquid or polymer on an inert solid support, inside a piece of glass or metal tubing called a column. The instrument used to perform gas chromatography is called a gas chromatograph. Gas chromatography is also similar to fractional distillation, since both processes separate the components of a mixture primarily based on boiling point differences. However, fractional distillation is typically used to separate components of a mixture on a large scale, whereas GC can be used on a much smaller scale. This book explores the essential aspects and details of certain gas chromatography applications in plant science, wine technology, toxicology and the other specific disciplines that are presently being researched. It provides a contemporary picture of the field, including fundamentals and practical applications, in a single source.

Автор: Ahuja, Satinder
Название: Chiral Separations by Chromatography
ISBN: 0841236313 ISBN-13(EAN): 9780841236318
Издательство: Oxford Academ
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Цена: 60190.00 T
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Описание: The primary focus of this book is on developing or selecting suitable chromatographic methods for chiral separations. A large number of examples are given to assist in this process, including thin-layer, gas, HPLC, supercritical fluid, capillary electrophoresis, and membrane separations. It
provides information on stereochemistry, TLC, GLC, and CE separation methods and detection; explores the importance of preparative separations; and illustrates the stereoisomeric composition of chemical compounds of pharmaceutical significance. There is discussion of regulations and requirements as
they apply to the development of pharmaceutical compounds, and a detailed section on HPLC methods.

Автор: Vitha Mark F.
Название: Chromatography
ISBN: 111927088X ISBN-13(EAN): 9781119270881
Издательство: Wiley
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Цена: 90760.00 T
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Описание: Provides students and practitioners with a solid grounding in the theory of chromatography, important considerations in its application, and modern instrumentation.

Автор: Cserhati, Tibor
Название: Chromatography of Aroma Compounds and Fragrances
ISBN: 3642016553 ISBN-13(EAN): 9783642016554
Издательство: Springer
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Цена: 174150.00 T
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Описание: The only comprehensive survey of chromatographic methods for the analysis of aroma compounds and fragrances, this book, written by a recognized member of the separation science community, features extensive tables with relevant data to aid method choice.