Download or read book Coulometric Electrode Array Detectors for Hplc written by Ian N. Acworth and published by VSP. This book was released on 1997 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This sixth volume in the book series Progress in HPLC-HPCE examines the enhancement of high- performance liquid chromatography through the development of an advanced mode of electrochemical detection (ECD) --- the coulometric array detection --- from its initial, yet problematic, amperometric (thin-layer) design to the highly sensitive, selective and stable coulometric (flow-through) design. Unlike amperometric electrodes, the coulometric electrode is 100% efficient and measures signals from all of the analyte passing through it, which leads to improved sensitivity as well as unique selectivity. The coulometric electrode array offers the resolution of the photodiode array with the extreme sensitivity of an electrochemical detector.
Download or read book Coulometric Electrode Array Detectors for HPLC written by I.H. Acworth and published by CRC Press. This book was released on 2024-01-26 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This sixth volume in the book series Progress in HPLC-HPCE examines the enhancement of high- performance liquid chromatography through the development of an advanced mode of electrochemical detection (ECD) --- the coulometric array detection --- from its initial, yet problematic, amperometric (thin-layer) design to the highly sensitive, selective and stable coulometric (flow-through) design. Unlike amperometric electrodes, the coulometric electrode is 100% efficient and measures signals from all of the analyte passing through it, which leads to improved sensitivity as well as unique selectivity. The coulometric electrode array offers the resolution of the photodiode array with the extreme sensitivity of an electrochemical detector.
Download or read book Electrochemical Detection in HPLC written by Robert J Flanagan and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical Detection in HPLC: Analysis of Drugs and Poisons is the first monograph devoted to the application of this mode of analysis to the assay of exogenous compounds such as drugs in biological fluids and associated areas. The introductory chapters provide information on basic electrochemistry and HPLC-ED, and on trouble-shooting. The specialized area of thiol analysis is also discussed in detail. Salient practical details of published applications of the technique in analytical toxicology and related areas are provided in a standard format. Alternative techniques are suggested throughout. The emphasis is on the analysis of exogenous compounds, although catecholamines and other endogenous species are discussed in so far as they may be used as drugs. The practical nature of this book will make it useful to professionals working in the field. It will also be of benefit to analysts wishing to use HPLC-ED in the analysis of biological samples for analytes not specifically covered in the volume.
Download or read book Agricultural and Food Electroanalysis written by Alberto Escarpa and published by John Wiley & Sons. This book was released on 2015-07-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural and Food Electroanalysis offers a comprehensive rationale of electroanalysis, revealing its enormous potential in agricultural food analysis. A unique approach is used which fills a gap in the literature by bringing in applications to everyday problems. This timely text presents in-depth descriptions about different electrochemical techniques following their basic principles, instrumentation and main applications. Such techniques offer invaluable features such as inherent miniaturization, high sensitivity and selectivity, low cost, independence of sample turbidity, high compatibility with modern technologies such as microchips and biosensors, and the use of exciting nanomaterials such as nanoparticles, nanotubes and nanowires. Due to the advantages that modern electroanalytical techniques bring to food analysis, and the huge importance and emphasis given today to food quality and safety, this comprehensive work will be an essential read for professionals and researchers working in analytical laboratories and development departments, and a valuable guide for students studying for careers in food science, technology and chemistry.
Download or read book Metabolome Analyses written by Seetharaman Vaidyanathan and published by Springer Science & Business Media. This book was released on 2006-03-20 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metabolome analysis is now recognized as a crucial component of functional genomic and systems biology investigations. Innovative approaches to the study of metabolic regulation in microbial, plant and animal systems are increasingly facilitating the emergence of systems approaches in biology. This book highlights analytical and bioinformatics strategies now available for investigating metabolic networks in microbial, plant and animal systems. The contributing authors are world leaders in this field and they present an unambiguous case for pursuing metabolome analysis as a means to attain a systems level understanding of complex biological systems.
Download or read book Food Analysis by HPLC Second Edition written by Leo M.L. Nollet and published by CRC Press. This book was released on 2000-04-05 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food Analysis by HPLC, Second Edition presents an exhaustive compilation of analytical methods that belong in the toolbox of every practicing food chemist. Topics covered include biosensors, BMO’s, nanoscale analysis systems, food authenticity, radionuclides concentration, meat factors and meat quality, particle size analysis, and scanning colorimity. It also analyzes peptides, carbohydrates, vitamins, and food additives and contains chapters on alcohols, phenolic compounds, pigments, and residues of growth promoters. Attuned to contemporary food industry concerns, this bestselling classic also features topical coverage of the quantification of genetically modified organisms in food.
Download or read book Methods in Biological Oxidative Stress written by Kenneth Hensley and published by Springer Science & Business Media. This book was released on 2008-02-06 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative damage appears to play a central role in the development of a wide range of tissue pathology, including neurodegenerative disease, drug side-effects, xenobiotic toxicity, carcinogenesis, and the aging process, to name just a few. Because of the centrality of oxidative processes to normal and abnormal tissue function, it has become imperative to develop appropriate analytical techniques to facilitate the quantitation of significant reactants. Without advances in methodology, corresponding advances in our knowledge of underlying biochemical events will be necessarily limited. Drs. Hensley and Floyd have done an outstanding job of assembling the work of world-class experts into Methods in Biological Oxidative Stress. The contributors have presented concise, yet thorough, descriptions of the state-of-the-art methods that any investigator working in the field needs to access. Mannfred A. Hollinger v Preface Free radicals and reactive oxidizing agents were once ignored as biochemical entities not worth close scrutiny, but are now recognized as causes or contributing factors in dozens, if not hundreds, of disease states. In addition, free radical metabolisms of xenobiotics have become increasingly important to pharmacologists. Accordingly, the need has arisen to accurately quantify reactive oxygen species and their byproducts. Methods in Biological Oxidative Stress is practical in scope, providing the details of up-to-date techniques for measuring oxidative stress and detecting oxidizing agents both in vitro and in vivo. The contributors are recognized experts in the field of oxidative stress who have developed novel strategies for studying biological oxidations.
Download or read book Oxidative Stress Biomarkers and Antioxidant Protocols written by Donald Armstrong and published by Springer Science & Business Media. This book was released on 2008-02-04 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first protocols book, Free Radical and Antioxidant Protocols (1) was published in late 1998. Sections were divided into three parts, covering selected biochemical techniques for measuring oxidative stress, antioxidant (AOX) activity, and combined applications. In choosing the 40 methods to be included in that book, I realized there were considerably more of equal value than that which we could have presented in a single volume. To produce a comprehensive resource, this book and a third are being compiled to expand coverage of the field. A summary of papers (2) published on this important subject emphasizes the continuing rapid growth in oxidative stress investigations relating to our understanding of biochemical reactions, their relevance to pathophysiological mechanisms, how disease may arise, and how therapeutic intervention may be achieved(3). Although there is some overlap between the categories, the ana- sis shown below illustrates where current studies are concentrated and are almost evenly distributed between free radicals and AOX. Over the last 4 yr, there has been a 55% increase in the number of papers published in the area.
Download or read book Hyphenated and Alternative Methods of Detection in Chromatography written by R. Andrew Shalliker and published by CRC Press. This book was released on 2011-12-14 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely employed for separating and detecting chemicals in solution, separation techniques are most often applied in tandem, subsequently referred to as hyphenated methods. Hyphenated and Alternative Methods of Detection in Chromatography details the development and application of mass spectral detection techniques coupled with gas phase and liquid
Download or read book Neurochemical Markers of Degenerative Nervous Diseases and Drug Addiction written by G. a. Qureshi and published by VSP. This book was released on 1998-03 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioimaging in Neurodegeneration written by Patricia A. Broderick and published by Springer Science & Business Media. This book was released on 2007-11-05 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioimaging is in the forefront of medicine for the diagnosis and helps to predict the progression of AD via mild cognitive treatment of neurodegenerative disease. Conventional magnetic impairment (MCI) studies. resonance imaging (MRI) uses interactive external magnetic fields Novel neuroimaging technologies, such as neuromolecular and resonant frequencies of protons from water molecules. imaging (NMI) with a series of newly developed BRODERICK ® However, newer sequences, such as magnetization-prepared rapid PROBE sensors, directly image neurotransmitters, precursors, acquisition gradient echo (MPRAGE), are able to seek higher and metabolites in vivo, in real time and within seconds, at separate levels of anatomic resolution by allowing more rapid temporal and selective waveform potentials. NMI, which uses an imaging. Magnetic resonance spectroscopy (MRS) images electrochemical basis for detection, enables the differentiation of metabolic changes, enabling underlying pathophysiologic neurodegenerative diseases in patients who present with mesial dysfunction in neurodegeneration to be deciphered. Neuro- versus neocortical temporal lobe epilepsy. In fact, NMI has some 1 chemicals visible with proton H MRS include N-acetyl aspartate remarkable similarities to MRI insofar as there is technological (NAA), creatine/phosphocreatine (Cr), and choline (Cho); NAA dependence on electron and proton transfer, respectively, and is considered to act as an in vivo marker for neuronal loss and/or further dependence is seen in both NMI and MRI on tissue neuronal dysfunction. By extending imaging to the study of composition such as lipids.
Download or read book Liquid Chromatography of Oligomers written by Constantin V. Uglea and published by CRC Press. This book was released on 1996-06-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the principles and mechanisms of, and the equipment and optimal working conditions for, the liquid-chromatographic separation of well-defined oligomeric species and fraction with narrow molecular weight distribution. The work provides a complete description of the applications and possible performance of liquid chromatography in the field of oligomer separation.
Download or read book Critical Reviews of Oxidative Stress and Aging written by Richard G. Cutler and published by World Scientific. This book was released on 2003 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume reference examines the translational research field of oxidative stress and ageing. It focuses on understanding the molecular basis of oxidative stress and its associated age-related diseases, with the goal of developing new methods for treating the human ageing processes.
Download or read book Electrochemical Detection in HPLC written by Robert James Flanagan and published by Royal Society of Chemistry. This book was released on 2005 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical Detection in HPLC: Analysis of Drugs and Poisons is the first monograph devoted to the application of this mode of analysis to the assay of exogenous compounds such as drugs in biological fluids and associated areas. The introductory chapters provide information on basic electrochemistry and HPLC-ED, and on trouble-shooting. The specialized area of thiol analysis is also discussed in detail. Salient practical details of published applications of the technique in analytical toxicology and related areas are provided in a standard format. Alternative techniques are suggested throughout. The emphasis is on the analysis of exogenous compounds, although catecholamines and other endogenous species are discussed in so far as they may be used as drugs. The practical nature of this book will make it useful to professionals working in the field. It will also be of benefit to analysts wishing to use HPLC-ED in the analysis of biological samples for analytes not specifically covered in the volume.
Download or read book Analysis of Antioxidant Rich Phytochemicals written by Zhimin Xu and published by John Wiley & Sons. This book was released on 2012-02-03 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: To quantify antioxidants in natural sources, the application of chromatography techniques with different detectors followed by skillful sample preparation is necessary. Analysis of Antioxidant-Rich Phytochemicals is the first book that specifically covers and summarizes the details of sample preparation procedures and methods developed to identify and quantify various types of natural antioxidants in foods. Focusing on the principle of quantification methods for natural antioxidants, the book reviews and summarizes current methods used in the determination of antioxidant-rich phytochemicals in different sources. Chapter by chapter, the distinguished team of authors describes the various methods used for analysis of the different antioxidant-rich phytochemicals – phenolic acids; carotenoids; anthocyanins; ellagitannins, flavonols and flavones; catechins and procyanidins; flavanones; stilbenes; phytosterols; and tocopherols and tocotrienols. Going beyond extensive reviews of the scientific literature, the expert contributors call on their accumulated experience in sample extraction and analysis to outline procedures, identify potential problems in dealing with different samples, and offer trouble-shooting tips for the analysis. Analysis of Antioxidant-Rich Phytochemicals covers the important food applications and health-promoting functions of the major antioxidant phytochemicals, presents general analysis principles and procedures, and systematically reviews and summarizes the various analytical methods necessary for each type of natural antioxidant in different food sources.
Download or read book Electrochemistry written by Craig Banks and published by Royal Society of Chemistry. This book was released on 2015-11-19 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Specialist Periodical Report Electrochemistry presents comprehensive and critical reviews in all aspects of the field, with contributions from across the globe, providing the reader with an informed digest of the most important research currently carried out in this field. Re-launching in 2015 with a new editorial team, Volume 13 returns to its roots and provides a wide range of topics written by leading experts researching at the forefront and heart of electrochemistry. The book covers topics such as control and structural analysis, and combines different approaches on utilizing light as a source for materials science. This volume is a key reference in the field of electrochemistry, allowing readers to become easily acquainted with the latest research trends.
Download or read book Electrochemical Detectors written by T. Ryan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: The widely perceived utility of electrochemical detectors in High Performance Liquid Chromatography has focussed attention on a number of disparate aspects of electrochemistry related to their successful design and application. The papers in this volume deal with an extraordinarily wide range of topics but all have the common focus of electrochemical detection as a practical chromatographic tool. While it is certainly not essential to be familiar with the theoretical principles in order to utilize it successfully, the determined user of electrochemical detector will seek to have an understanding of the background. Some of the following pages will provide an excellent grounding as well as pointing the potential user in the direction of proven and possible applications in a variety of fields. The meeting, of which this book is a record, was the fifth event in the biannual Anglo-Czech Symposia in Electrochemistry. The organ izers of that meeting were extremely pleased to welcome a select group of scientists from the J Heyrovsky Institute of Physical Chemistry and Electrochemistry to the meeting, thus continuing a tradition of cooperation and friendship going back over ten years. The contributions of the visitors to the scientific content of the meeting were enthusiastically received and their participation in the informal and social activities can only have furthered the cause of cooperation and good will between our two countries.
