Download or read book Extraction Methods in Organic Analysis written by Alan John Handley and published by Blackwell. This book was released on 1999 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume in a new series, Sheffield Analytical Chemistry, which presents the state of the art in chosen sectors of analytical chemistry. In this volume, authors drawn from respected laboratories around the world cover conventional and more recent techniques of extraction and sample preparation - crucial elements in accurate analysis. In recent years, there has been an explosion of interest in new methodologies, fuelled by the need for faster and simpler analysis, but until now there has been no book dedicated to this important area. Each chapter covers some background theory, the available instrumentation and the strengths and weaknesses of the method. Key applications areas are then addressed. This is a book for analytical chemists, organic chemists, environmental scientists, food scientists, pharmaceutical chemists, polymer chemists and earth scientists working in the academic and industrial sectors.
Download or read book Extraction Techniques for Environmental Analysis written by John R. Dean and published by John Wiley & Sons. This book was released on 2022-03-01 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction Techniques for Environmental Analysis Explore the analytical approach to extraction techniques In Extraction Techniques for Environmental Analysis, accomplished environmental scientist and researcher John R. Dean delivers a comprehensive discussion of the extraction techniques used for organic compounds relevant to environmental analysis. In the book, extraction techniques for aqueous, air, and solid environmental matrices are explored and case studies that highlight those techniques are included. Readers will find in-depth treatments of specific extraction techniques suitable for adoption in their own laboratories, as well as reviews of relevant analytical techniques used for the analysis of organic compound extracts (with a focus on chromatographic separation and detection). Extraction Techniques for Environmental Analysis also includes a chapter that extensively covers the requirements for an analytical laboratory, including health and safety standards, as well as: A thorough introduction to pre-sampling, as well as the extraction of aqueous samples, including the classical approach for aqueous extraction and solid phase extraction Comprehensive explorations of the extraction of gaseous samples, including air sampling Practical discussions of the extraction of solid samples, including pressurized fluid extraction and microwave-assisted extraction In-depth examinations of post-extraction procedures, including pre-concentration using solvent evaporation Extraction Techniques for Environmental Analysis is a must-read resource for undergraduate students of applied chemistry, as well as postgraduates taking analytical chemistry courses or courses in related disciplines, like forensic or environmental science.
Download or read book Extraction of Organic Analytes from Foods written by Ron Self and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed as a laboratory manual of methods used for the preparation and extraction of organic chemical compounds from food sources. It offers ideas on how to facilitate progress towards the total automation of the assay, as well as proposing assays for unknowns by comparison with known methods. Beginning with an introduction to extraction methodology, Extraction of Organic Analytes from Foods then progresses through sample preparation, extraction techniques (partition, solvation, distillation, adsorption and diffusion) and applications. Subject indices for the applications are organised by commodity, method, chemical class and analyte, and provide useful examples of references from the literature to illustrate historical development of the techniques. Examples of methods that have been compared, combined or used in collaborative trials have been correlated and used to form the beginnings of a database that can be expanded and updated to provide a laboratory reference source. Logically structured and with numerous examples, Extraction of Organic Analytes from Foods will be invaluable to practising food analysts as both a reference and training guide. In addition, the introductory sections in each chapter have been written with food science and technology students in mind, making this an important title for academic libraries.
Download or read book Extraction Techniques in Analytical Sciences written by John R. Dean and published by John Wiley & Sons. This book was released on 2010-05-18 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Liquid Phase Extraction written by Colin F. Poole and published by Elsevier. This book was released on 2019-08-29 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Extraction Methods for Environmental Analysis written by John R. Dean and published by John Wiley & Sons. This book was released on 1998-08-10 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction Methods for Environmental Analysis is the first book to bring together all the extraction techniques used for analysis of liquid and solid environmental samples, including solid phase extraction and micro-extraction, supercritical fluid extraction, microwave-assisted extraction and accelerated solvent extraction. The book is divided into two sections - solid sample preparation and liquid sample preparation - to facilitate access, and each section starts with a summary of methods available. The techniques are compared and contrasted by means of 70 bar charts, all in two colours, and 32 tables. Relative merits of the techniques are discussed to enable the user to select the most appropriate technique for their sample and method of analysis. Extraction Methods for Environmental Analysis is essential reading for anyone involved in environmental analysis.
Download or read book Green Extraction of Natural Products written by Farid Chemat and published by John Wiley & Sons. This book was released on 2016-03-11 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction processes are essential steps in numerous industrial applications from perfume over pharmaceutical to fine chemical industry. Nowadays, there are three key aspects in industrial extraction processes: economy and quality, as well as environmental considerations. This book presents a complete picture of current knowledge on green extraction in terms of innovative processes, original methods, alternative solvents and safe products, and provides the necessary theoretical background as well as industrial application examples and environmental impacts. Each chapter is written by experts in the field and the strong focus on green chemistry throughout the book makes this book a unique reference source. This book is intended to be a first step towards a future cooperation in a new extraction of natural products, built to improve both fundamental and green parameters of the techniques and to increase the amount of extracts obtained from renewable resources with a minimum consumption of energy and solvents, and the maximum safety for operators and the environment.
Download or read book Comprehensive Sampling and Sample Preparation written by Josep M. Bayona and published by Academic Press. This book was released on 2012-12-31 with total page 2998 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Sampling and Sample Preparation is a complete treatment of the theory and methodology of sampling in all physical phases and the theory of sample preparation for all major extraction techniques. It is the perfect starting point for researchers and students to design and implement their experiments and support those experiments with quality-reviewed background information. In its four volumes, fundamentals of sampling and sample preparation are reinforced through broad and detailed sections dealing with Biological and Medical, Environmental and Forensic, and Food and Beverage applications. The contributions are organized to reflect the way in which analytical chemists approach a problem. It is intended for a broad audience of analytical chemists, both educators and practitioners of the art and can assist in the preparation of courses as well in the selection of sampling and sample preparation techniques to address the challenges at hand. Above all, it is designed to be helpful in learning more about these topics, as well as to encourage an interest in sampling and sample preparation by outlining the present practice of the technology and by indicating research opportunities. Sampling and Sample preparation is a large and well-defined field in Analytical Chemistry, relevant for many application areas such as medicine, environmental science, biochemistry, pharmacology, geology, and food science. This work covers all these aspects and will be extremely useful to researchers and students, who can use it as a starting point to design and implement their experiments and for quality-reviewed background information There are limited resources that Educators can use to effectively teach the fundamental aspects of modern sample preparation technology. Comprehensive Sampling and Sample Preparation addresses this need, but focuses on the common principles of new developments in extraction technologies rather than the differences between techniques thus facilitating a more thorough understanding Provides a complete overview of the field. Not only will help to save time, it will also help to make correct assessments and avoid costly mistakes in sampling in the process Sample and sample preparation are integral parts of the analytical process but are often less considered and sometimes even completely disregarded in the available literature. To fill this gap, leading scientists have contributed 130 chapters, organized in 4 volumes, covering all modern aspects of sampling and liquid, solid phase and membrane extractions, as well as the challenges associated with different types of matrices in relevant application areas
Download or read book Modern Extraction Techniques written by Charlotta Turner and published by . This book was released on 2006 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last ten years, several new extraction techniques have been developed that are faster, more automated and use less organic solvents compared to classical solvent extraction techniques. Furthermore, there is a clear trend going towards the use of (and research on) environmentally sustainable methods, which is encouraging for the future. Supercritical fluid extraction (SFE) and pressurized liquid extraction (PLE) are two of the most useful techniques for extraction of non-polar and medium polar solutes from solid and semi-solid samples. These techniques commonly use pressurized carbon dioxide or hot liquids such as water as extraction solvents, respectively. For aqueous samples, stir-bar sorptive extraction (SBSE) has recently been developed. These are some of the techniques that will be described in the proposed symposium series book. Focus will be on the extraction of various compounds from food and agricultural samples in either an analytical or a process-scale point-of-view. Several of the book chapters will compare the different techniques, and describe their advantages and disadvantages. Applications discussed in this book include SFE of biopolymers from distillers dried grains, SFE of lipids from oilseeds, PLE of functional ingredients from plants and herbs, tandem SFE/PLE of acrylamide from potato chips, SFE and PLE of cholesterol and fat from hamster liver, and steam distillation-extraction (SDE) and SBSE of flavors from shitake mushrooms.
Download or read book Extraction Chromatography written by and published by Elsevier. This book was released on 1975-06-01 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction Chromatography
Download or read book Methods of Organic Analysis written by Henry Clapp Sherman and published by . This book was released on 1905 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solid Phase Extraction written by Colin F. Poole and published by Elsevier. This book was released on 2019-09-12 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid Phase Extraction thoroughly presents both new and historic techniques for dealing with solid phase extraction. It provides all information laboratory scientists need for choosing and utilizing suitable sample preparation procedures for any kind of sample. In addition, the book showcases the contemporary uses of sample preparation techniques in the most important industrial and academic project environments, including solid-phase Microextraction, molecularly imprinted polymers, magnetic nanoparticles, and more. Written by recognized experts in their respective fields, this one-stop reference is ideal for those who need to know which technique to choose for solid phase extraction. Used in conjunction with a similar release, Liquid Phase Extraction, this book 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
Download or read book Natural Product Extraction written by Mauricio A Rostagno and published by Royal Society of Chemistry. This book was released on 2015-10-09 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural products are sought after by the food, pharmaceutical and cosmetics industries, and research continues into their potential for new applications. Extraction of natural products in an economic and environmentally-friendly way is of high importance to all industries involved. This book presents a holistic and in-depth view of the techniques available for extracting natural products, with modern and more environmentally-benign methods, such as ultrasound and supercritical fluids discussed alongside conventional methods. Examples and case studies are presented, along with the decision-making process needed to determine the most appropriate method. Where appropriate, scale-up and process integration is discussed. Relevant to researchers in academia and industry, and students aiming for either career path, Natural Product Extraction presents a handy digest of the current trends and latest developments in the field with concepts of Green Chemistry in mind.
Download or read book Extraction Techniques in Analytical Sciences written by John R. Dean and published by Wiley. This book was released on 2010-01-11 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers one of the most important areas in analytical sciences, i.e. that of extraction techniques for organic compounds in environmental and related matrices, e.g. food. This text discusses all of the key stages for analysing a sample for organic compounds from the initial sampling protocols through to the range of different extraction techniques used for solid, liquid and air samples and finally through to the final chromatographic analysis. The text provides detailed information on specific extraction techniques to prepare samples for organic compound analysis. The topics covered include the following: 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 MEPS. 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 the following: Up-to-date information on the latest development in extraction techniques for organic compounds in environmental and food matrices. Written in the AnTS style, it is 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 resources section to guide the reader to other sources of information. Extraction Techniques in Analytical Sciences should prove invaluable to students who are studying university-level courses – "undergraduate- to postgraduate-taught". The text will also prove invaluable as a key 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 material sciences. 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. Series Editor: David J. Ando
Download or read book Techniques of Solvent Extraction of Organic Material from Natural Waters written by John Thomas Cronin and published by . This book was released on 1967 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual and automatic solvent extraction techniques were used to concentrate organic material from natural waters. Field and laboratory extractions were compared to determine the most probable method and best solvents for efficient concentration of organic material from estuarine and sea waters. The large scale extraction processes utilizing extractors made from 55 gallon drums were operated both by manually moving perforated metal discs through the water and solvent for mixing and by bubbling air through the aqueous-solvent mixture. Resulting samples proved large enough for the detection of short-chain fatty acids (carbon length 1 through 10). Identification of organic constituents was by gas chromatography-mass spectroscopy. Other portions of these samples were separated by column chromatography with subsequent analysis by infrared, visible, ultraviolet, and mass spectroscopy. The proximity of the Hanford Atomic Product Operations to the collecting area caused some of the organics to be labeled with trace amounts of radionuclides. A counter-current pulse column extractor was used at sea aboard the Research Vessel YAQUINA. The organic solvent, hexone, used in this extraction was distilled before and after the extraction with various fractions of solvent being kept for control. The extraction was carried out under varying chemical and physical conditions. The hexone was back-extracted into hydrochloric acid, sodium bicarbonate, or sodium hydroxide before analysis by flame-ionization gas chromatography and mass spectroscopy. Other portions of the product hexone were analyzed for total solid matter recovered and carbon, hydrogen, and nitrogen content. Small intermediate scale extractions were carried out in the laboratory using several solvents. Resulting organic material was analyzed by tandem gas chromatography-mass spectroscopy. Where possible, organic derivatives were prepared to aid in the identification of the recovered organic material. The advantages and disadvantages of large scale extractions and small laboratory procedures were discussed.
Download or read book Microwave assisted Extraction for Bioactive Compounds written by Farid Chemat and published by Springer Science & Business Media. This book was released on 2012-12-12 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing energy prices and the drive to reduce CO2 emissions, food industries are challenged to find new technologies in order to reduce energy consumption, to meet legal requirements on emissions, product/process safety and control, and for cost reduction and increased quality as well as functionality. Extraction is one of the promising innovation themes that could contribute to sustainable growth in the chemical and food industries. For example, existing extraction technologies have considerable technological and scientific bottlenecks to overcome, such as often requiring up to 50% of investments in a new plant and more than 70% of total process energy used in food, fine chemicals and pharmaceutical industries. These shortcomings have led to the consideration of the use of new "green" techniques in extraction, which typically use less solvent and energy, such as microwave extraction. Extraction under extreme or non-classical conditions is currently a dynamically developing area in applied research and industry. Using microwaves, extraction and distillation can now be completed in minutes instead of hours with high reproducibility, reducing the consumption of solvent, simplifying manipulation and work-up, giving higher purity of the final product, eliminating post-treatment of waste water and consuming only a fraction of the energy normally needed for a conventional extraction method. Several classes of compounds such as essential oils, aromas, anti-oxidants, pigments, colours, fats and oils, carbohydrates, and other bioactive compounds have been extracted efficiently from a variety of matrices (mainly animal tissues, food, and plant materials). The advantages of using microwave energy, which is a non-contact heat source, includes more effective heating, faster energy transfer, reduced thermal gradients, selective heating, reduced equipment size, faster response to process heating control, faster start-up, increased production, and elimination of process steps. This book will present a complete picture of the current knowledge on microwave-assisted extraction (MAE) of bioactive compounds from food and natural products. It will provide the necessary theoretical background and details about extraction by microwaves, including information on the technique, the mechanism, protocols, industrial applications, safety precautions, and environmental impacts.
Download or read book Methods for the Determination of Organic Compounds in Drinking Water written by and published by . This book was released on 1990 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
