Download or read book Volatile Organic Compounds in Headspace Over Electrical Components written by Neil D. Paz and published by . This book was released on 2007 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contaminated Water Supplies at Camp Lejeune written by National Research Council and published by National Academies Press. This book was released on 2009-09-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s, two water-supply systems on the Marine Corps Base Camp Lejeune in North Carolina were found to be contaminated with the industrial solvents trichloroethylene (TCE) and perchloroethylene (PCE). The water systems were supplied by the Tarawa Terrace and Hadnot Point watertreatment plants, which served enlisted-family housing, barracks for unmarried service personnel, base administrative offices, schools, and recreational areas. The Hadnot Point water system also served the base hospital and an industrial area and supplied water to housing on the Holcomb Boulevard water system (full-time until 1972 and periodically thereafter). This book examines what is known about the contamination of the water supplies at Camp Lejeune and whether the contamination can be linked to any adverse health outcomes in former residents and workers at the base.

Download or read book Soil Sampling and Analysis for Volatile Organic Compounds written by and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ion Mobility Spectrometry written by G.A. Eiceman and published by CRC Press. This book was released on 2013-12-10 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the twenty-first century, applications of ion mobility spectrometry (IMS) have diversified, expanding their utility in the military and security spheres and entering the realms of clinical practice and pharmaceutical exploration. Updated and expanded, the third edition of Ion Mobility Spectrometry begins with a comprehensive discu

Download or read book Progress in Volatile Organic Compounds Research written by Igor Jerković and published by MDPI. This book was released on 2020-12-29 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volatile organic compounds (VOCs) have been intensively investigated in the last few decades. Their origins differ: plant secondary metabolites, food/beverages aromas, fungal/bacterial volatiles, and others. VOCs typically occur as complex mixtures of compounds (e.g., monoterpenes, sesquiterpenes, norisoprenoids, aliphatic/aromatic compounds, sulfur containing compounds, and others). They form through different biochemical pathways and can be modified or created during drying or maturation, thermal treatment, and others. Different conventional or modern methods of VOCs isolation, followed by the analysis with chromatographic and spectroscopic techniques, usually provide different chemical profiles and have been under constant modification and upgrading. The ecological interactions are mediated by VOCs (inter- and intra-organismic communication) and they can act as pheromones, attractants, or alleochemicals. Among them, chemical biomarkers of botanical origin or chemotaxonomic markers may be found. Many VOCs possess different biological activities, such as antioxidant, antimicrobial, antiviral, anticancer, and other activities. VOCs research from different sources is required to report their distribution and chemical profiles, and to discover new compounds. This Special Issue aims to attract up-to-date contributions on all aspects of VOCs chemistry, from challenges in their isolation to analysis, and on unlocking their biological activities or other useful properties

Download or read book Elements for a Protocol on Volatile Organic Compounds VOCs written by Canada and published by . This book was released on 1990 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Technology Verification Report Field Portable Gas Chromatograph Sentex Systems Inc Scentograph Plus II written by and published by DIANE Publishing. This book was released on with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static Headspace Gas Chromatography written by Bruno Kolb and published by John Wiley & Sons. This book was released on 2006-06-23 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only reference to provide both current and thorough coverage of this important analytical technique Static headspace-gas chromatography (HS-GC) is an indispensable technique for analyzing volatile organic compounds, enabling the analyst to assay a variety of sample matrices while avoiding the costly and time-consuming preparation involved with traditional GC. Static Headspace-Gas Chromatography: Theory and Practice has long been the only reference to provide in-depth coverage of this method of analysis. The Second Edition has been thoroughly updated to reflect the most recent developments and practices, and also includes coverage of solid-phase microextraction (SPME) and the purge-and-trap technique. Chapters cover: * Principles of static and dynamic headspace analysis, including the evolution of HS-GC methods and regulatory methods using static HS-GC * Basic theory of headspace analysis-physicochemical relationships, sensitivity, and the principles of multiple headspace extraction * HS-GC techniques-vials, cleaning, caps, sample volume, enrichment, and cryogenic techniques * Sample handling * Cryogenic HS-GC * Method development in HS-GC * Nonequilibrium static headspace analysis * Determination of physicochemical functions such as vapor pressures, activity coefficients, and more Comprehensive and focused, Static Headspace-Gas Chromatography, Second Edition provides an excellent resource to help the reader achieve optimal chromatographic results. Practical examples with original data help readers to master determinations in a wide variety of areas, such as forensic, environmental, pharmaceutical, and industrial applications.

Download or read book Handbook of Food Analysis Methods and instruments in applied food analysis written by Leo M. L. Nollet and published by CRC Press. This book was released on 2004 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents contemporary methods of measuring optical properties, moisture, ash content, and other physical characteristics of food and evaluates techniques used to trace nutrient analytes ranging from peptides, proteins, and enzymes to aroma compounds to carbohydrates and starch.

Download or read book Organic Compounds in Natural Waters written by T Roy Crompton and published by CRC Press. This book was released on 2013-09-23 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential health hazards that might arise from the presence of organic substances in water are a matter of increasing concern to the water industry, environmentalists and the general public alike. This comprehensive reference draws together and systematises the vast body of information available on the occurrence and determination of organic substances in natural waters. Organic Compounds in Natural Waters provides a comprehensive description of organic substances in waters. Methods are provided in broad outline, with guidance on their applicability, their comparative advantages and disadvantages, possible interferences, sensitivity and detection levels. The book is an essential reference for analytical chemists working in industry, water utilities, government, non government organisations and regulatory agencies and environmental/analytical consultants.

Download or read book Olfaction and Electronic Nose Fifth International Symposium Proceedings written by W. Jeffry Hurst and published by CRC Press. This book was released on 1999-07-23 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Olfaction and Taste V is a collection of the proceedings of the fifth international symposium held at the Howard Florey Institute of Experimental Physiology & Medicine, University of Melbourne, Australia, October 1974. Contributors discuss the knowledge about olfaction and taste, including the anatomy of receptors and their ultrastructure, innervation of receptor fields, and the processes of receptor turnover. Themes ranging from taste modifiers and receptor proteins to afferent coding; how the sensory code for taste and olfaction are processed and sharpened

Download or read book Introduction to Machine Olfaction Devices written by Najib Altawell and published by Elsevier. This book was released on 2021-10-14 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Machine Olfaction Devices discusses the various aspects of a MOD device, from historical approaches to state-of-the-art technologies. This book also covers the mechanism in dealing and detecting gases, odor, and aroma. Problems and solutions relevant to present day design have been outlined as well as a step-by-step guide to Machine Olfaction Device (MOD) design. Sensors and gas systems, along with polymers and certain manufacturing processes, have been discussed, together with other relevant materials for the MOD process and functions including comparison and validations, data processing, data analysis, MOD new design, micro systems, and monitoring systems. Aimed at developing a novel and improved MOD with more efficient on-board data processing capability for monitoring applications, this book will help you to design an MOD with a faster stabilizing base line; a quicker sample result display; an ability to use ambient air; a low power consumption; and the ability to deal with different varieties of organic/inorganic samples. With a focus on the most important and relevant aspects of designing MODs which currently require a solution, topics covered include MOD and market issues, cost, technical issues, and MOD applications. With a huge range of potential applications, this book will be of special interest to those working (or studying) in this field at every level, from Biomedical, Energy, or Electrical Engineers, to Computer or Food Scientists. Introduction to Machine Olfaction Devices discusses the various aspects of a MOD device, from historical approaches to state-of-the-art technologies. This book also covers the mechanism in dealing and detecting gases, odor, and aroma. Problems and solutions relevant to present day design have been outlined as well as a step-by-step guide to Machine Olfaction Device (MOD) design. Sensors and gas systems, along with polymers and certain manufacturing processes, have been discussed, together with other relevant materials for the MOD process and functions including comparison and validations, data processing, data analysis, MOD new design, micro systems, and monitoring systems. Aimed at developing a novel and improved MOD with more efficient on-board data processing capability for monitoring applications, this book will help you to design an MOD with a faster stabilizing base line; a quicker sample result display; an ability to use ambient air; a low power consumption; and the ability to deal with different varieties of organic/inorganic samples. With a focus on the most important and relevant aspects of designing MODs which currently require a solution, topics covered include MOD and market issues, cost, technical issues, and MOD applications. With a huge range of potential applications, this book will be of special interest to those working (or studying) in this field at every level, from Biomedical, Energy, or Electrical Engineers, to Computer or Food Scientists. Focuses on the most important and relevant aspects of designing machine olfaction devices (MOD) which currently require a solution Topics covered include: MOD and market issues; MOD and cost; MOD and technical issues; MOD applications

Download or read book Metabolism of Fruit Volatile Organic Compounds written by Jinhe Bai and published by Frontiers Media SA. This book was released on 2022-06-29 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Environmental Technology Verification Report Field Portable Gas Chromatograph Perkin Elmer Photovac Voyager written by and published by DIANE Publishing. This book was released on with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Volatile Organic Compound Analysis in Biomedical Diagnosis Applications written by Raquel Cumeras and published by CRC Press. This book was released on 2018-11-09 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a thought-provoking state-of-the-art picture of how volatile compounds are used in metabolomics, currently a hot topic in the metabolomics field. It provides a thorough description of what volatile organic compounds (VOCs) are, why they are important in biomedicine, and what the analytical platforms are used. It also looks at multivariate analysis and databases needs. Because VOCs are end-up compounds of metabolic processes, volatiles can be linked to different diseases or pathologies for both diagnosis and prognosis. The authors provide authoritative information and guidance on the analytical and statistical techniques used and how to identify, and they review the main current areas of application, which include breath metabolomics, cancer diagnosis, and microbial volatiles. Key Features: Presents a thorough overview of volatile research in biomedical applications Examines both gold standard techniques (metabolomics based) and artificial olfactory systems Reviews all aspects of volatile metabolites in biomedicine research, from origin to detection platforms Describes relevant diseases diagnosis and prognosis achievements, including cancer