Download or read book Dietary Supplement Test Methods Liquid Chromatography Separation Techniques And Application written by David Dajing Ji and published by World Scientific. This book was released on 2022-04-21 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the analytical approach to testing over 160 important dietary supplement ingredients. In addition to the methods, there is significant guidance provided on how to develop, modify, and improve testing techniques. The procedures in this book include some of the most modern technologies that are available in the laboratory today. These basic principles of method development and troubleshooting can be implemented for food and food safety testing, drug development research, and agricultural areas. The contents of this book contain a very comprehensive collection of valuable analytical tools.
Download or read book Dietary Supplement Test Methods written by David Dajing Ji and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book describes the analytical approach to testing over 160 important dietary supplement ingredients. In addition to the methods, there is significant guidance provided on how to develop, modify, and improve testing techniques. The procedures in this book include some of the most modern technologies that are available in the laboratory today. These basic principles of method development and troubleshooting can be implemented for food and food safety testing, drug development research, and agricultural areas. The contents of this book contain a very comprehensive collection of valuable analytical tools"--
Download or read book Handbook of Analytical Methods for Dietary Supplements written by Frank Jaksch and published by American Pharmacists Association (APhA). This book was released on 2005 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Highlights include: an in-depth review of how analytical methods for dietary supplements are validated, including information on what buyers of analytical services should look for and how they should assess the quality of results. This review is useful to those validating their own in-house methods, as well; 38 monographs on dietary ingredients most commonly used to produce dietary supplements. Each monograph follows a standard format for quick reference; chemical names, formulas, and structures, along with information on solubility and other physical and chemical data; a description of common uses for each dietary supplement and its mode of action; discussion of reference standards and/or marker compounds used; information and directions for using various component-specific methods; and chromatography specifications and representative chromatograms, when available."--BOOK JACKET.
Download or read book Chromatographic And Related Separation Techniques In Food Integrity And Authenticity A 2 volume Set written by Oscar Nunez and published by World Scientific. This book was released on 2021-06-24 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food manufacturers, researchers and society in general are increasingly highly interested in the quality and origin of food products. Considering the complexity of the food chain in a globalized world — where many players are involved between production and consumption — fraudulent food manipulation and adulteration practices are increasingly easier to conduct without being detected. Generally, food adulteration is carried out to increase volume, to mask the presence of inferior quality components, and to replace authentic substances for the seller's economic gain. Analytical methodologies to guarantee food integrity and authenticity are therefore required.Chromatographic and Related Separation Techniques in Food Integrity and Authenticity — Volume A: Advances in Chromatographic Techniques addresses fraud prevention and the latest chromatographic and related separation analytical techniques to guarantee food integrity and authenticity by giving special attention to relevant authenticity issues in food production.Chromatographic and Related Separation Techniques in Food Integrity and Authenticity — Volume B: Relevant Applications addresses the relevant application of techniques to assess different food products' integrity and authenticity.
Download or read book Preparative Chromatography Techniques written by K. Hostettmann and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few years, increasing attention has been paid to the search for bioactive compounds from natural sources. The success of plant-derived products such as paclitaxel (Taxol) in tumor therapy or artemisinin in the treatment of malaria has provided the impetus for the introduction of numerous research programmes, especially in Industry. A great deal of effort is being expended in the generation of novel lead molecules of vegetable, marine and microbial origin by the use of high throughput screening protocols. When interesting hits are found, it is essen tial to have methods available for the rapid isolation of target compounds. For this reason, both industry and academia need efficient preparative chromatographic separation techniques and experience in their application. Purified natural products are required for complete spectro scopic identification and full characterization of new compo unds, for biological testing and for the supply of pharmaceuti cals, standards, and starting materials for synthetic work. Obtaining pure products from an extract can be a very long, te dious and expensive undertaking, involving many steps. Sometimes only minute amounts of the desired compounds are at hand and these entities may be labile. Thus it is an advantage to have access to as many different methods as possible in order to aid the isolation process. Although a certain amount of trial and error may be involved, nowadays there is the possibility of devising suitable rapid separation schemes by a judicious choice of the different techniques available.
Download or read book Instrumental Thin Layer Chromatography written by Colin Poole and published by Elsevier. This book was released on 2023-01-14 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instrumental Thin-Layer Chromatography, Second Edition offers a comprehensive source of authoritative information on all aspects of instrumental thin-layer chromatography. The use of short, topic-focused chapters facilitates identifying information of immediate interest for familiar or emerging uses of thin-layer chromatography. The book gives those working in both academia and industry the opportunity to learn, refresh, or deepen their understanding of fundamental and instrumental aspects of thin-layer chromatography, as well as the tools to interpret and manage chromatographic data. The book serves as a practical consolidated guide to the selection of separation conditions and the use of auxiliary techniques. This fully updated new edition restores the contemporary character of the book for those involved in advancing the technology, analyzing data produced, or applying the technique to new application areas. Some chapters have been consolidated to make room for topics not covered in the first edition, reflecting general changes in the field of thin-layer chromatography, especially in effects-directed detection, convenient interfaces for advanced spectroscopic detection, and greater automation possibilities. This book is a valuable reference for anyone who needs to acquire fundamental and practical information to facilitate progress in research and management functions utilizing information acquired by thin-layer chromatography. Features individual chapters written by recognized authoritative and visionary experts in the field Provides an overview and focused treatment of a single topic Provides tables and diagrams with commonly used data to facilitate practical work, comparison of results, and decision-making Places modern developments in the research literature into a general context not always apparent to inexperienced users of the technique Offers comprehensive updates to all chapters Includes new chapters on instrument platforms, effects-directed detection, data analysis tools, small-scale and microfluidic planar separation systems, and applications to the separation of amino acids and peptides, the analysis of saccharides and lipids, and forensic analysis
Download or read book Liquid Chromatography written by A. Gentili and published by Elsevier Inc. Chapters. This book was released on 2013-01-08 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-performance liquid chromatography (HPLC) has become the technique of choice to perform an accurate determination of water-soluble and fat-soluble vitamins and provitamin A carotenoids in foods, especially for routine work. An overview of main HPLC methods for the individual and simultaneous vitamin analysis in foods is here presented. All precautions indispensable for handling these analytes, easily susceptible to degradation, are described as well as problems connected with the sample preparation, chromatographic separation and detection. Difficulties related to the development of multivitamin methods are also assessed and the potentiality of the latest extraction and chromatographic detection techniques are highlighted.
Download or read book A Method for the Determination of the Ingredients of Several Dietary Supplements by Liquid Chromatography written by Whitney Leigh Taylor and published by . This book was released on 2011 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The category of products known as dietary supplements covers a wide range of products including multivitamins, herbal supplements and energy drinks. High performance liquid chromatography (HPLC) is a common analytical technique for pharmaceuticals. This study presents an HPLC method for the quantitation of several ingredients in dietary supplements Lentra, Prolent, and Somni-TR. Photodetection by polydiacetylene is another quantitative method. Polydiacetylenes have two optical states, a "red" and a "blue" state, and an irreversible transition can be triggered from the blue to the red state by the binding of an analyte to the polymer. The potential usefulness of PDA lies in its ability to act as both receptor and transducer. In this study, attempts were made to synthesize several diacetylene monomers which could be used in PDA thin films or vesicles. These attempts included several different chain lengths and functional groups."--Abstract from author supplied metadata.
Download or read book Liquid Chromatography written by Y. Miyoshi and published by Elsevier Inc. Chapters. This book was released on 2013-01-08 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid chromatographic methods for the determination of amino acids and bioamines are outlined and discussed. In Section , direct separation methods with postcolumn derivatization or MS/MS detection are described. In Section , typical indirect methods are summarized. In this section, precolumn derivatization reagents for UV–Vis detection, fluorescence detection, and MS/MS detection are explained. Enantioselective analytical methods for amino acids are also described (Section ).
Download or read book Chromatographic Techniques in the Forensic Analysis of Designer Drugs written by Teresa Kowalska and published by CRC Press. This book was released on 2018-01-31 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a dramatic rise of novel drug use due to the increased popularity of so-called designer drugs. These synthetic drugs can be illegal in some countries, but legal in others and novel compounds unknown to drug chemistry emerge monthly. This thoughtfully constructed edited reference presents the main chromatographic methodologies and strategies used to discover and analyze novel designer drugs contained in diverse biological materials. The methods are based on molecular characteristics of the drugs belonging to each individual class of compounds, so it will be clear how the current methods are adaptable to future new drugs that appear in the market.
Download or read book Liquid Chromatography written by D. Patel and published by . This book was released on 1997-06-19 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: In all biological science laboratories, some type of separation techniques will be undertaken. Modern separation techniques rely heavily on chromatographic procedures. This text provides scientists and technicians with information on the data needed to run liquid chromatography techniques.
Download or read book Liquid Chromatography written by Y. Shen and published by Elsevier Inc. Chapters. This book was released on 2013-01-08 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: A characteristic of traditional medicinal practices, such as traditional Chinese medicines (TCMs) and Indian ayurveda, is the abundant use of plants as drugs. However, the bottleneck in the use of herbal drugs is the control of their safety, effectiveness, and quality. Good quality control (QC) is necessary to achieve the standards of modern medicines. Liquid chromatography, being a powerful universal separation technique, is widely available in laboratories and easily hyphenated with other spectroscopic and biochemical techniques. A number of LC-based strategies—such as multicomponent quantitation, fingerprinting, bioaffinity chromatography, and on-flow assays for screening—have been used for the comprehensive QC of TCMs, lead finding, and identification of active constituents. In this chapter, the applications and development of such LC-based methods for TCMs and other herbal drugs are presented and discussed. Some future trends are given.
Download or read book Separation Techniques in Clinical Chemistry written by Hassan Y. Aboul-Enein and published by CRC Press. This book was released on 2003-05-28 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference examines innovations in separation science for improved sensitivity and cost-efficiency, increased speed, higher sample throughput and lower solvent consumption in the assessment, evaluation, and validation of emerging drug compounds. It investigates breakthroughs in sample pretreatment, HPLC, mass spectrometry, capillary electrophoresis and therapeutic drug monitoring for improved productivity, precision, and safety in clinical chemistry, biomedical analysis, and forensic research. From saliva, hair, and biological samples to illegal drugs and toxins, Separation Techniques in Clinical Chemistry is a thorough single-source guide for analytical, organic, pharmaceutical, medicinal, physical, surface, and colloid chemists and biochemists; and upper-level undergraduate and graduate students in these disciplines.
Download or read book Modern Chromatographic Analysis Of Vitamins written by Andre P. De Leenheer and published by CRC Press. This book was released on 2000-04-18 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Third Edition collects and examines the tremendous proliferation of information on chromatographic analysis of fat and water soluble vitamins over the last decade. Extensively describes sample preparation and final measurement.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Method Development and Validation written by Michael E. Swartz and published by CRC Press. This book was released on 2018-10-03 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes analytical methods development, optimization and validation, and provides examples of successful methods development and validation in high-performance liquid chromatography (HPLC) areas. The text presents an overview of Food and Drug Administration (FDA)/International Conference on Harmonization (ICH) regulatory guidelines, compliance with validation requirements for regulatory agencies, and methods validation criteria stipulated by the US Pharmacopia, FDA and ICH.
Download or read book Carbohydrate Analysis by Modern Liquid Phase Separation Techniques written by Ziad El Rassi and published by Elsevier. This book was released on 2021-08-15 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbohydrate Analysis by Modern Liquid Phase Separation Techniques, Second Edition, presents readers with the various principles of modern liquid phase separation techniques and their contributions to the analysis of complex carbohydrates and glycoconjugates. In a selection of all-new chapters, this fully updated volume covers each technique in detail. The book aims to help analysts solve any of the many practical problems they may face in tackling the analysis of carbohydrates. In addition, it addresses current difficulties that must be resolved in carbohydrate research, thus inspiring further important technological developments to meet these challenges. This is an essential resource for anyone seeking a broad view of the science of carbohydrates and separation techniques. Covers the basic principles of modern liquid phase separation techniques, along with their applications Compiles up-to-date information on the field of carbohydrate analysis, along with updates on separation science Focuses on problems currently faced in carbohydrate analysis and the solutions necessary for further progress
