Download or read book Detection in Liquid Chromatography by Means of UV absorbing Or Fluorescent System Components written by Lars Hackzell and published by . This book was released on 1983 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Practical Guide to HPLC Detection written by Donald Parriott and published by Academic Press. This book was released on 2012-12-02 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide for the practicing chromatographer who wants a ready source of information on HPLC detection explores and compares existing detection systems and detectors, outlines the common problems associated with a given detector, and offers proven approaches to avoiding such problems. Addresses the practical aspects of HPLC detection, including: basic theory, when a particular type of detector can be used, how detectors from various manufacturers differ, common problems of detectors and ways to avoid them Presents an overview of today's most common techniques Discusses the advantages and disadvantages of HPLC, dispelling common misconceptions

Download or read book Detection Oriented Derivatization Techniques in Liquid Chromatography written by H. Lingeman and published by CRC Press. This book was released on 1990-01-19 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the principles, kinetics, and applications of derivatization reactions in liquid chromatography. It emphasizes detection-oriented derivatization procedures that can be used to enhance to detectability of a wide variety of solutes using absorbance and fluorescence detection.

Download or read book Liquid Chromatography Detectors written by T. M. Vickrey and published by CRC Press. This book was released on 2020-10-28 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book documents the principles of operation, the advantages and drawbacks, and the potential future of currently available liquid chromatographic detectors. In offering a snapshot of the current technology, it provides clear explanations and possible new horizons for both beginners and experts.

Download or read book Advances in Lipid Methodology written by W. W. Christie and published by Elsevier. This book was released on 1997-05-01 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth volume of an occasional series of review volumes dealing with aspects of lipid methodology. As with the first three volumes, topics have been selected that have been developing rapidly in recent years and have some importance to lipid analysis. The authors are all leading international experts.Topics covered include: analysis of plant lipoxygenase metabolites, preparative high-performance liquid chromatography of lipids, structural analysis of fatty acids, and analysis of stable isotopes in lipids, among others.

Download or read book Recent Advances in Thin Layer Chromatography written by F.A.A. Dallas and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years TLC has suffered from the image of being a low sensitivity, low resolution, non-quantitative teehnique, suitable for chemists, but not a tool for real ehromatographers. Whilst perhaps true in the past this attitude no longer ref1eets the eapabi1ities of modern instrumenta1ized TLC in all its many forms. This volume represents the proceedings of a meeting in Brighton in 1987 whieh formed part of a eontinuing series of one and two day events on TLC organized by the Chromatographie Soeiety either alone or, like this one, in eonjunetion with other learned bodies. These meetings are designed to keep ehromatographers up to date with the latest deve10pments and help promote a more positive image of TLC. lan Wilson November 1987 v CONTENTS The Chromatographic Society xi Contemporary Thin-layer Chromatography: An introduction IoD. Wilson INSTRUMENTATION Quantitative Methods in Thin-layer Chromatography C.F. Poole, S.K. Poole and T.A. Dean 11 Fluorescence Line-narrowing Spectroscopy: A New and Highly Selective Detection Technique for Thin-layer and Liquid Chromatography J.W. Hofstraat, C. Gooijer, U.A. Th. Brinkman and N.H. Velthorst 29 Qualitative and Quantitative Image Analysis of Fluorescence from High Performance Thi. n-layer Chromatography R.M. Belchamber, S.J. Brinkworth, H. Read and J.D.M. Roberts 37 Analytical Rotation Planar Chromatography Sz. Nyiredy, K. Dallenbach-Toelke and O. Sticher 45 Analytical and Preparative Overpressured Layer Chromatography E. Mincsovics and E. Tyihak 57 Anticircular Planar Chromatography: Analytical and Preparative Aspects H. Traitler and A.

Download or read book Fluorescence detection techniques in liquid chromatography written by Lars Johnson and published by . This book was released on 1982 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Methods in the Determination of Bioactive Compounds and Elements in Food written by Magdalena Jeszka-Skowron and published by Springer Nature. This book was released on 2021-02-02 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most bioactive compounds have antioxidant activity, particularly tocochromanols, phenolics (flavonoids and phenolic acids), methylxantines and capsaicinoids. Some of these compounds have also other properties important for human health. For example, vitamin E protects against oxidative stress, but it is also known for its “non-antioxidant” functions, including cell signalling and antiproliferation. Selenium compounds and indoleamins are the components of the antioxidant enzymes. Selenium makes vitamin E acquisition easier and controls its physiological functions. In taking part in enzymatic reactions and protecting the cell against free radicals, selenium shows immunomodulative, antiphlogistic, and antiviral activity. Capsaicinoids possess not only antioxidant, but also antibacterial, analgesic, weight-reducing and thermoregulation properties. Studies have also demonstrated their gastroprotective and anticancer properties. Analytical Methods in the Determination of Bioactive Compounds and Elements in Food explores both the influence of particular compounds on human health and the methods used for their determination. Chapters describe various aspects of food and plant analysis, including chromatographic and non‐chromatographic approaches as well as hyphenated techniques. Readers of this book will gain a comprehensive understanding of the important groups of bioactive compounds relevant to human health.

Download or read book High Performance Liquid Chromatography Video Fluorometry Part I Instrumentation written by Michael P. Fogarty and published by . This book was released on 1981 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rapid scanning, two-dimensional fluorometer has been used to obtain Emission-Excitation Matrices (EEMs) of the effluent of an HPLC. These spectra, obtained 'on the fly, ' provide qualitative as well as quantitative information about unknown samples. An in-depth discussion of the instrumentation developed as well as data processing alternatives is presented. Current detectors for HPLC have certain limitations in the ability to completely characterize the column effluent during the separation of a complex sample. These limitations result, chiefly, from a lack of selectivity in the detectors used. One such example is the refractive index (RI) detector which monitors the change in a bulk property of the effluent, the refractive index. Even absorption and fluorescence detectors which use a single monitoring wavelength are typically more selective and sensitive than RI detectors. Still, the multicomponent capabilities of these devices are severely limited. More selective detection schemes have been developed. These employ atomic absorption and electrochemical techniques to selectively analyze components. Advanced, scanning absorption and fluorescence detectors have improved multicomponent capabilities.

Download or read book Introduction to Modern Liquid Chromatography written by Lloyd R. Snyder and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 831 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest edition of the authoritative reference to HPLC High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC. This Third Edition, with John Dolan as added coauthor, addresses important improvements in columns and equipment, as well as major advances in our understanding of HPLC separation, our ability to solve problems that were troublesome in the past, and the application of HPLC for new kinds of samples. This carefully considered Third Edition maintains the strengths of the previous edition while significantly modifying its organization in light of recent research and experience. The text begins by introducing the reader to HPLC, its use in relation to other modern separation techniques, and its history, then leads into such specific topics as: The basis of HPLC separation and the general effects of different experimental conditions Equipment and detection The column—the "heart" of the HPLC system Reversed-phase separation, normal-phase chromatography, gradient elution, two-dimensional separation, and other techniques Computer simulation, qualitative and quantitative analysis, and method validation and quality control The separation of large molecules, including both biological and synthetic polymers Chiral separations, preparative separations, and sample preparation Systematic development of HPLC separations—new to this edition Troubleshooting tricks, techniques, and case studies for both equipment and chromatograms Designed to fulfill the needs of the full range of HPLC users, from novices to experts, Introduction to Modern Liquid Chromatography, Third Edition offers the most up-to-date, comprehensive, and accessible survey of HPLC methods and applications available.

Download or read book High Performance Liquid Chromatography of Peptides and Proteins written by Colin T. Mant and published by CRC Press. This book was released on 2017-11-22 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of a series of 82 precise, easy-to-read articles by internationally renowned scientists and emphasizes the practical approach to HPLC with minimal theory, although the underlying principles for peptide and protein separations are clearly expressed. All of the major modes of microbore, ultrafast and analytical HPLC are discussed, including size-exclusion, ion-exchange, reversed-phase, hydrophobic interaction, and affinity and immunoaffinity chromatography. A section on preparative HPLC, including displacement techniques, is also presented. Problem-solving approaches to the separation of various classes of biologically active peptides and proteins are thoroughly explored, while the importance of peptide standards for monitoring column performance and for optimizing separation conditions is emphasized. Several articles focus on the choice of the correct detection method (electrochemical, UV, fluorescence), as well as the need for a proper knowledge of approaches to column and instrument maintenance and trouble-shooting. A section on predictive approaches deals with both computer simulation of peptide separations and peptide structure. The book also includes complementary techniques to HPLC, as well as other useful applications of HPLC. It enables both novice and experienced chromatographers to realize the full potential of this extremely powerful technique, in the process making an important contribution to scientific literature.

Download or read book Practical High Performance Liquid Chromatography written by Veronika R. Meyer and published by John Wiley & Sons. This book was released on 2013-03-25 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jump into the HPLC adventure! Three decades on from publication of the 1st German edition of Veronika Meyer's book on HPLC, this classic text remains one of the few titles available on general HPLC aimed at practitioners. New sections on the following topics have been included in this fifth edition: Comparison of HPLC with capillary electrophoresis How to obtain peak capacity van Deemter curves and other coherences Hydrophilic interaction chromatography Method transfer Comprehensive two-dimensional HPLC Fast separations at 1000 bar HPLC with superheated water In addition, two chapters on the instrument test and troubleshooting in the appendix have been updated and expanded by Bruno E. Lendi, and many details have been improved and numerous references added. A completely new chapter is presented on quality assurance covering: Is it worth the effort? Verification with a second method Method validation Standard operating procedures Measurement uncertainty Qualifications, instrument test, and system suitability test The quest for quality Reviews of earlier editions "That this text is written by an expert in both the practice and teaching of HPLC is evident from the first paragraph....not only an enjoyable, fascinating and easy read, but a truly excellent text that has and will serve many teachers, students and practitioners very well." —The Analyst “...provides essential information on HPLC for LC practitioners in academia, industry, government, and research laboratories...a valuable introduction." - American Journal of Therapeutics

Download or read book UV Spectroscopy written by B.J. Clark and published by Springer Science & Business Media. This book was released on 1993-04-30 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as an introductory text. It starts at the very fundamentals of the interaction of light and matter and progresses through the laws of light absorption, instrumentation and standards to the newer chemometric techniques. Other chapters cover colour, structural aspects of UV spectroscopy, detection in high performace liquid chromatography and flourescence.

Download or read book Fluorescent Components in Human Urine Characterization by High performance Liquid Chromatography with Fluorescence Detection written by Charles Sherman Baer and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Performance Liquid Chromatography written by Omar Al Sayed Omar and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-02-21 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an indispensable guide on how to use HPLC in pharmaceutical analysis and drug control. Following a hands-on approach, the authors give practical advices how to prepare stationary and mobile phases, choose a suitable detector and set up an HPLC analysis. The publication gives insight into the key pharmaceutical applications of HPLC and the latest requirements of the major regulatory agencies.

Download or read book Nielsen s Food Analysis written by B. Pam Ismail and published by Springer Nature. This book was released on with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Chromatography of Natural Pigments and Synthetic Dyes written by Tibor Cserháti and published by Elsevier. This book was released on 2006-12-07 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This latest volume in the series entitled Liquid Chromatography of Natural Pigments and Synthetic Dyes presents an overview of the latest developments in the field while critically evaluating this method of analysis and providing comparisons of the various liquid chromatographic separation techniques that are currently available. Natural pigments and synthetic dyes are extensively used in various fields of everyday life including food production, textile industry, paper production, agricultural practice and research and water science and technology. Besides their capacity for increasing the marketability of products, natural pigments have shown advantageous biological activity as antioxidants and anticancer agents. On the negative side, synthetic pigments have a significant impact on the environment and can cause adverse toxicological side effects. Both pigment classes exhibit considerable structural diversity. As the stability of the pigments against hydrolysis, oxidation and other environmental and technological conditions is markedly different, the exact determination of the pigment composition may help for the prediction of the shelf-life of products and the assessment of the influence of technological steps on the pigment fractions resulting in more consumer friend processing methods. Furthermore, the qualitative determination and identification of the pigments may contribute to the establishment of the provenance of the product. The unique separation capacity of liquid chromatographic (LC) techniques makes it a method of preference for the analysis of pigments in any complicated accompanying matrices. * an overview of the latest developments in the field * a critical evaluation of results from this form of analysis * a comparison of the various LC (liquid chromatographic) separation techniques * future trends in the LC analysis of pigments