Extraction Chromatography
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Extraction Chromatography
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Author :
language : en
Publisher: Elsevier
Release Date : 1975-06-01
Extraction Chromatography written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975-06-01 with Science categories.
Extraction Chromatography
Analysis With Supercritical Fluids Extraction And Chromatography
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Author : Bernd Wenclawiak
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Analysis With Supercritical Fluids Extraction And Chromatography written by Bernd Wenclawiak and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The use of supercritical fluids in analytical chemistry is still grow ing. More and more analysts are discovering the favorable advan tages for a number of applications. Especially supercritical fluid extraction (SFE) has attracted a lot of interest in recent years due to its simplicity. Supercritical fluid chromatography (SFC) has become better established and the development of this technique has been accelerated by the many applications with capillary col umns which have been published in the literature. At first SFC equipment was based on instruments commonly used for liquid chromatography, and the first commercial in struments were derived from this technology. However, capillary columns can be much more easily interfaced to gas chromatogra phy equipment especially to the detectors commonly used for Oc. Many stationary phases both for packed micro columns and capillary columns have been designed for SFC purposes extending this technology to LC and OC. The most common fluid applied in SFC and SFE is carbon dioxide. The advantages of supercritical CO , such as having dif 2 fusivity like a gas and solvating power depending on temperature and pressure, are also valid for other fluids and modified fluids. Both properties are valuable for sample extraction and extraction selectivity.
Extraction Chromatography
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Author : Tibor Braun
language : en
Publisher:
Release Date : 1975
Extraction Chromatography written by Tibor Braun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Liquid chromatography categories.
Practical Supercritical Fluid Chromatography And Extraction
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Author : Thomas Caudell
language : en
Publisher: Routledge
Release Date : 2018-05-08
Practical Supercritical Fluid Chromatography And Extraction written by Thomas Caudell and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-08 with Science categories.
An exploration of fundamental as well as practical aspects of supercritical fluid chromatography and extraction. It addresses topics such as: packed columns in SFC; detection in SFC; supercritical fluid chromatography/mass spectroscopy; and evaporative light scattering detection in SFC.
Practical Supercritical Fluid Chromatography And Extraction
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Author : Thomas Caudell
language : en
Publisher: CRC Press
Release Date : 1999-03-08
Practical Supercritical Fluid Chromatography And Extraction written by Thomas Caudell and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-08 with Science categories.
This book explores the fundamental and practical aspects of supercritical fluid chromatography (SFC) and extraction. It discusses packed columns in SFC; detection in SFC; supercritical fluid chromatography/mass spectroscopy; and evaporative light scattering detection in SFC.
Liquid Phase Extraction
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Author : Colin F. Poole
language : en
Publisher: Elsevier
Release Date : 2019-08-29
Liquid Phase Extraction written by Colin F. Poole and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-29 with Science categories.
Liquid Phase Extraction thoroughly presents both existing and new techniques in liquid phase extraction. It not only provides all information laboratory scientists need for choosing and utilizing suitable sample preparation procedures for any kind of sample, but also showcases the contemporary uses of sample preparation techniques in the most important industrial and academic project environments, including countercurrent chromatography, pressurized-liquid extraction, single-drop Microextraction, and more. Written by recognized experts in their respective fields, it serves as a one-stop reference for those who need to know which technique to choose for liquid phase extraction. Used in conjunction with a similar release, Solid Phase Extraction, it allows users to master this crucial aspect of sample preparation. Defines the current state-of-the-art in extraction techniques and the methods and procedures for implementing them in laboratory practice Includes extensive referencing that facilitates the identification of key information Aimed at both entry-level scientists and those who want to explore new techniques and methods
Solid Phase Extraction
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Author : Nigel J.K. Simpson
language : en
Publisher: CRC Press
Release Date : 2000-03-15
Solid Phase Extraction written by Nigel J.K. Simpson and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-03-15 with Science categories.
Demonstrating the relationship of the basic theory of solid-phase extraction (SPE) to chromatography, this comprehensive reference illustrates how SPE techniques significantly contribute to the preparation of samples for a wide variety of analytical techniques. It provides step-by-step details on the applications of SPE to environmental matrices, broad-spectrum drug screening, veterinary drug abuse, pharmaceutical drug development, biological samples, and high-throughput screening. Written by world-renowned experts in the field, the book contains helpful reference charts, tables of solvent properties, selectivities, molecular acid/base properties, and more.
Supercritical Fluid Extraction And Its Use In Chromatographic Sample Preparation
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Author : S.A. Westwood
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Supercritical Fluid Extraction And Its Use In Chromatographic Sample Preparation written by S.A. Westwood and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
by Professor D. E. Games, Mass Spectrometry Research Unit, University College of Swansea Sample preparation can be viewed as occupying a Cinderella role in analytical science. However, the quality of sample preparation plays a key role in high In the past decade, there has been quality analysis and deserves higher stature. considerable interest in the use of supercritical fluid extraction (SFE) as an alternative to conventional procedures for the preparation of samples for ana lysis. The driving force for this development is the need for automated, sim pler, faster, non-destructive and selective methods for extraction, preferably using non-toxic extraction media which are easily disposed of. Utilization of supercritical fluids for extraction fulfils these requirements because of their unique physical chemical properties and usually low toxicity. Selectivity can be achieved by suitable selection of pressure (density), temperature and modi fier conditions which enable solvating power to be varied. The high diffusivity of supercritical fluids provides rapid sample penetration and extraction. Use of fluids with low critical temperatures enables extraction to be conducted under mild thermal conditions ensuring that thermally labile compounds do not decompose. The technique can be used off-line, and the extracts analysed by appropriate techniques, or it can be used on-line, by coupling with a variety of chromatographic techniques. These can then, if necessary, be coupled fur ther with spectroscopic techniques, such as Fourier transform infrared, ultra violet or mass spectrometry, to provide specific identification or structural information.
Analytical Supercritical Fluid Extraction Techniques
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Author : E.D. Ramsey
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Analytical Supercritical Fluid Extraction Techniques written by E.D. Ramsey and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
During the past decade supercritical fluid extration (SFE) has attracted considerable attention as a sample preparation procedure in analytical chemistry. The successful implementation of this technique can lead to improved sample throughput, more efficient recovery of analytes, cleaner extracts, economic replacement of halogenated solvents and a high level of automation, compared to conventional sample preparation procedures. This book provides an overview of basic principles of SFE as well as in-depth reviews of both on- and off-line SFE methods. The on-line coupling of SFE with both chromatographic and spectroscopics techniques has been the subject of a great deal of research effort and is dealt with in detail. Newer developments, such as off-line SFE of solid and liquid matrices, are starting to attract a great deal of interest, and the coverage of these areas will prove of particular value to the analytical chemist. The international team of authors has illustrated these topics with many `state-of-the-art' applications, and each chapter provides a comprehensive list of references. For the convenience of the reader, an appendix which contains pressure conversion scales and supercritical fluid carbon dioxide density tables appears at the end of the book. The volume's extensive coverage of both on-line and off-line extraction will be particularly useful to analytical chemists, in a wide range of environments, seeking to develop high quality, simple and robust SFE methods.
Rna Purification And Analysis
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Author : Douglas T. Gjerde
language : en
Publisher: John Wiley & Sons
Release Date : 2009-07-10
Rna Purification And Analysis written by Douglas T. Gjerde and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-10 with Science categories.
This first book on the market covers the many new and important RNA species discovered over the past five years, explaining current methods for the enrichment, separation and purification of these novel RNAs. Building up from general principles of RNA biochemistry and biophysics, this book addresses the practical aspects relevant to the laboratory researcher throughout, while discussing the performance and potential problems of the methods discussed. An appendix contains a glossary with the important terms and techniques used in RNA analysis. By explaining the basic and working principles of the methods, the book allows biochemists and molecular biologists to gain much more expertise than by simply repeating a pre-formulated protocol, enabling them to select the procedure and materials best suited to the RNA analysis task at hand. As a result, they will be able to develop new protocols where needed and optimize and fine-tune the general purpose standard protocols that come with the purification equipment and instrumentation.