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Author: M. Valcárcel
Publisher: Bentham Science Publishers
ISBN: 1681083795
Category : Science
Languages : en
Pages : 430
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Book Description
Sample treatment has been the focus of intensive research in the last 20 years since it still remains a bottleneck in precise analytical procedures. The low concentration of the target analytes, the large amount of potential interfering agents and the incompatibility of the sample matrix with the instrumental techniques are the main reasons for these bottlenecks. In most of these methods, sample treatment is an unavoidable step and it has a clear influence on the quality (sensitivity, selectivity, and accuracy) of the final analytical results. While the usefulness of microextraction techniques has been established, their complete acceptance in analytical laboratories (including official methods of analysis) depends on their successful automation and integration with conventional analytical instrumentation. Analytical Microextraction Techniques presents comprehensive information about several analytical methods that are useful in the laboratory. These include: sorptive microextraction, solid and liquid phase microextraction, packed sorbent microextraction, miniaturized dispersive solid-phase extraction, thin film and nanoparticle based techniques, and membrane-based techniques. This is a vital reference on microextraction and sample preparation techniques for applied chemistry students, analytical chemists and laboratory technicians.
Author: M. Valcárcel
Publisher: Bentham Science Publishers
ISBN: 1681083795
Category : Science
Languages : en
Pages : 430
Get Book Here
Book Description
Sample treatment has been the focus of intensive research in the last 20 years since it still remains a bottleneck in precise analytical procedures. The low concentration of the target analytes, the large amount of potential interfering agents and the incompatibility of the sample matrix with the instrumental techniques are the main reasons for these bottlenecks. In most of these methods, sample treatment is an unavoidable step and it has a clear influence on the quality (sensitivity, selectivity, and accuracy) of the final analytical results. While the usefulness of microextraction techniques has been established, their complete acceptance in analytical laboratories (including official methods of analysis) depends on their successful automation and integration with conventional analytical instrumentation. Analytical Microextraction Techniques presents comprehensive information about several analytical methods that are useful in the laboratory. These include: sorptive microextraction, solid and liquid phase microextraction, packed sorbent microextraction, miniaturized dispersive solid-phase extraction, thin film and nanoparticle based techniques, and membrane-based techniques. This is a vital reference on microextraction and sample preparation techniques for applied chemistry students, analytical chemists and laboratory technicians.
Author: John M Kokosa
Publisher: John Wiley & Sons
ISBN: 0470278595
Category : Science
Languages : en
Pages : 340
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Book Description
This book offers both a practical as well a theoretical approach to Solvent Microextraction (SME) and will help analytical chemists to evaluate SME for a given sample preparation. Introductory chapters overview a comparison of SME with other sample preparation methods, a summary of the technical aspects, and a detailed theoretical treatment of SME. The book then describes the practical aspects of the technique, with detailed “how to” chapters devoted to the preparation and analysis of atmospheric, solid and liquid environmental, clinical and industrial samples. This text will serve as both a handy laboratory desk-reference and an indispensible instructional tool.
Author: Janusz Pawliszyn
Publisher: Elsevier
ISBN: 0123914493
Category : Science
Languages : en
Pages : 497
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Book Description
The relatively new technique of solid phase microextraction (SPME) is an important tool to prepare samples both in the lab and on-site. SPME is a "green" technology because it eliminates organic solvents from analytical laboratory and can be used in environmental, food and fragrance, and forensic and drug analysis. This handbook offers a thorough background of the theory and practical implementation of SPME. SPME protocols are presented outlining each stage of the method and providing useful tips and potential pitfalls. In addition, devices and fiber coatings, automated SPME systems, SPME method development, and In Vivo applications are discussed. This handbook is essential for its discussion of the latest SPME developments as well as its in depth information on the history, theory, and practical application of the method. - Practical application of Solid Phase Microextraction methods including detailed steps - Provides history of extraction methods to better understand the process - Suitable for all levels, from beginning student to experienced practitioner
Author: Rafael Lucena
Publisher: Elsevier
ISBN: 0128221720
Category : Science
Languages : en
Pages : 573
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Book Description
Analytical Sample Preparation With Nano- and Other High-Performance Materials covers advanced sample treatment techniques and the new materials that can be used to boost their performance. The evolution of sample treatment over the last two decades has resulted in the development of new techniques and application of new materials. This is a must-have resource for those studying advanced analytical techniques and the role of high-performance materials in analytical chemistry. The book explains the underlying principles needed to properly understand sample preparation, and also examines the latest materials - including nanomaterials - that result in greater sensitivity and specificity. The book begins with a section devoted to all the various sample preparation techniques and then continues with sections on high-performance sorbents and high-performance solvents. - Combines basic, fundamental principles and advanced concepts and applications for a comprehensive treatment of sample preparation with new materials - Defines nano- and other high-performance materials in this context, including carbon nanoparticles, inorganic nanoparticles, ionic liquids, supramolecular solvents, and more - Includes discussion of all the latest advancements and new findings in both techniques and materials used for proper sample preparation
Author: Wenkui Li
Publisher: John Wiley & Sons
ISBN: 111927429X
Category : Science
Languages : en
Pages : 384
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Book Description
Revised and Expanded Handbook Provides Comprehensive Introduction and Complete Instruction for Sample Preparation in Vital Category of Bioanalysis Following in the footsteps of the previously published Handbook of LC-MS Bioanalysis, this book is a thorough and timely guide to all important sample preparation techniques used for quantitative Liquid Chromatography–Mass Spectrometry (LC-MS) bioanalysis of small and large molecules. LC-MS bioanalysis is a key element of pharmaceutical research and development, post-approval therapeutic drug monitoring, and many other studies used in human healthcare. While advances are continually being made in key aspects of LC-MS bioanalysis such as sensitivity and throughput, the value of research/study mentioned above is still heavily dependent on the availability of high-quality data, for which sample preparation plays the critical role. Thus, this text provides researchers in industry, academia, and regulatory agencies with detailed sample preparation techniques and step-by-step protocols on proper extraction of various analyte(s) of interest from biological samples for LC-MS quantification, in accordance with current health authority regulations and industry best practices. The three sections of the book with a total of 26 chapters cover topics that include: Current basic sample preparation techniques (e.g., protein precipitation, liquid-liquid extraction, solid-phase extraction, salting-out assisted liquid-liquid extraction, ultracentrifugation and ultrafiltration, microsampling, sample extraction via electromembranes) Sample preparation techniques for uncommon biological matrices (e.g., tissues, hair, skin, nails, bones, mononuclear cells, cerebrospinal fluid, aqueous humor) Crucial aspects of LC-MS bioanalytical method development (e.g., pre-analytical considerations, derivation strategies, stability, non-specific binding) in addition to sample preparation techniques for challenging molecules (e.g., lipids, peptides, proteins, oligonucleotides, antibody-drug conjugates) Sample Preparation in LC-MS Bioanalysis will prove a practical and highly valuable addition to the reference shelves of scientists and related professionals in a variety of fields, including pharmaceutical and biomedical research, mass spectrometry, and analytical chemistry, as well as practitioners in clinical pharmacology, toxicology, and therapeutic drug monitoring.
Author: Janusz Pawliszyn
Publisher: John Wiley & Sons
ISBN: 9780471190349
Category : Science
Languages : en
Pages : 266
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Book Description
Gesetzliche Auflagen und ökonomische Erwägungen steigern den Bedarf an Propenpräparations- und -extraktionstechniken, die ohne toxische organische Lösungsmittel auskommen. Die hier erstmals in Buchform veröffentlichte Festphasen-Mikroextraktion (SPME) ist ein neuartiges Verfahren, das diesen Anforderungen entspricht und gegenwärtig apparativ umgesetzt wird. Der Erfinder selbst, ein international anerkannter Pionier auf dem Gebiet der lösungsmittelfreien Extraktion, erklärt theoretische Hintergründe und praktische Anwendungsmöglichkeiten. SPME ist einfach, kostengünstig, automatisierbar, zeit- und analytsparend. Interessant für Analytiker in Industrie und Forschung, für Spurenanalytik, Umwelt- und pharmazeutische Chemie.
Author: John R. Dean
Publisher: John Wiley & Sons
ISBN: 9780470682500
Category : Science
Languages : en
Pages : 308
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Book Description
This book coves one of the most important areas in analytical sciences, extraction techniques for organic compounds in environmental and related matrices. This text discusses all of the key stages for analysing a sample for organic compounds from the initial sampling protocols, the range of different extraction techniques for solid, liquid and air samples through to the final chromatographic analysis. The topics covered include: Initial steps for solid, aqueous and air sampling. Extraction techniques for aqueous samples, including LLE, purge and trap, SPE, SPME, SBSE, SDME, membrane microextraction and MPES. Extraction techniques for solid samples, including Soxhlet, 'Soxtec', Shake-flask, sonication, PFE, MAE, SFE and MSPD. Extraction techniques for air sampling, including whole air, enrichment approaches and desorption techniques. Pre-concentration approaches for post-extraction. Practical aspects for chromatographic analysis (GC and HPLC) of organic compounds. Quality assurance aspects of analysis. Health and safety considerations. Key features include: Up-to-date information on the latest development in extraction techniques for organic compounds in environmental and food matrices. Ideal for use as a self-study guide, as the basis of a taught course or guided reading for new 'early-career' researchers. Includes a guide for the reader to other sources of information. Extraction Techniques in Analytical Sciences is suitable for undergraduate and postgraduate students, as well as providing an invaluable starting point for individuals undertaking applied research in the fields of analytical, bioanalytical, environmental and food sciences. The Analytical Techniques in the Sciences series of books provides coverage of all of the major analytical techniques and their application in the most important areas of physical, life and materials science. Each text is presented in an open learning/distance learning style, in which the learning objectives are clearly identified. the reader's understanding of the material is constantly evaluated by the use of self-assessment and discussion questions.
Author: Somenath Mitra
Publisher: John Wiley & Sons
ISBN: 0471457825
Category : Science
Languages : en
Pages : 480
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Book Description
The importance of accurate sample preparation techniques cannot be overstated--meticulous sample preparation is essential. Often overlooked, it is the midway point where the analytes from the sample matrix are transformed so they are suitable for analysis. Even the best analytical techniques cannot rectify problems generated by sloppy sample pretreatment. Devoted entirely to teaching and reinforcing these necessary pretreatment steps, Sample Preparation Techniques in Analytical Chemistry addresses diverse aspects of this important measurement step. These include: * State-of-the-art extraction techniques for organic and inorganic analytes * Sample preparation in biological measurements * Sample pretreatment in microscopy * Surface enhancement as a sample preparation tool in Raman and IR spectroscopy * Sample concentration and clean-up methods * Quality control steps Designed to serve as a text in an undergraduate or graduate level curriculum, Sample Preparation Techniques in Analytical Chemistry also provides an invaluable reference tool for analytical chemists in the chemical, biological, pharmaceutical, environmental, and materials sciences.
Author: Oscar Núñez Burcio
Publisher: Nova Publishers
ISBN: 9781634850728
Category : Food
Languages : en
Pages : 0
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Book Description
Nowadays, there is a growing need for applications in food control and safety analysis to cope with the analysis of a large number of analytes in a very complex matrix. New analytical procedures are demanding sensitivity, robustness, effectiveness and high resolution within a reduced analysis time. Most of these requirements may be met to a certain extent by the total or partial automation of the conventional analytical methods, including sample preparation or sample pre-treatment coupled on-line to an analytical system. Despite the advances in chromatographic separations and mass spectrometry techniques, sample preparation is still one of the most important parts in any analytical method development and an effective sample preparation is essential for achieving good analytical results. Obviously, ideal sample preparation methods should be fast, accurate, precise and must keep sample integrity. For this reason, and over the last years, considerable efforts have been made to develop modern approaches in sample treatment techniques that enable the reduction of the analysis time without compromising the integrity of the extraction process. The aim of this book is to discuss new trends in sample preparation techniques applied to food analysis, and it will address not only the principles of each technique, but the most relevant applications in food control and safety analysis published over the few last years.
Author: Suresh Kumar Kailasa
Publisher: John Wiley & Sons
ISBN: 3527347585
Category : Science
Languages : en
Pages : 324
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Book Description
Miniaturized Analytical Devices An in-depth overview of integrating functionalized nanomaterials with mass spectrometry, spectroscopy, electrophoresis, and other important analytical techniques Miniaturized Analytical Devices: Materials and Technology is an up-to-date resource exploring the analytical applications of miniaturized technology in areas such as clinical microbiology, pharmaceuticals, agriculture, and environmental analysis. The book covers the integration of functional nanomaterials in mass spectrometry, microscopy, electrophoresis, and more—providing the state-of-the-art information required for successfully implementing a range of chemical analysis techniques on microchips. Featuring contributions from a panel of international experts in the field, the book begins with an introduction to selected miniaturized devices, nanomaterials, and analytical methods. Subsequent sections describe functionalized nanomaterials (FNMs) for miniaturized devices and discuss techniques such as miniaturized mass spectrometry for bioassays and miniaturized microscopy for cell imaging. The book concludes by exploring a variety of applications of miniaturized devices in areas including metal analysis, bioimaging, DNA separation and analysis, molecular biology, and more. This timely volume: Surveys the current state of the field and provides a starting point for developing faster, more reliable, and more selective analytical devices Focuses on the practical applications of miniaturized analytical devices in materials science, clinical microbiology, the pharmaceutical industry, and environmental analysis Covers a wide range of materials and analytical techniques such as microvolume UV-VIS spectroscopy, microchip and capillary electrophoresis, and matrix assisted laser desorption ionization-mass spectrometry (MALDI-MS) analysis Discusses the role of miniaturized analytical devices in securing a green and sustainable future Miniaturized Analytical Devices: Materials and Technology is essential reading for analytical chemists, analytical laboratories, materials scientists, biologists, life scientists, and advanced students in related fields.
