Thermal Desorption VOC Sampler
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Publisher:
Published: 1998
Total Pages: 40
ISBN-13:
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Publisher:
Published: 1998
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKAuthor: Ralf Koppmann
Publisher: John Wiley & Sons
Published: 2008-04-15
Total Pages: 512
ISBN-13: 0470994150
DOWNLOAD EBOOKEvery day, large quantities of volatile organic compounds (VOCs) are emitted into the atmosphere from both anthropogenic and natural sources. The formation of gaseous and particulate secondary products caused by oxidation of VOCs is one of the largest unknowns in the quantitative prediction of the earth’s climate on a regional and global scale, and on the understanding of local air quality. To be able to model and control their impact, it is essential to understand the sources of VOCs, their distribution in the atmosphere and the chemical transformations which remove these compounds from the atmosphere. In recent years techniques for the analysis of organic compounds in the atmosphere have been developed to increase the spectrum of detectable compounds and their detection limits. New methods have been introduced to increase the time resolution of those measurements and to resolve more complex mixtures of organic compounds. Volatile Organic Compounds in the Atmosphere describes the current state of knowledge of the chemistry of VOCs as well as the methods and techniques to analyse gaseous and particulate organic compounds in the atmosphere. The aim is to provide an authoritative review to address the needs of both graduate students and active researchers in the field of atmospheric chemistry research.
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Publisher:
Published: 1995
Total Pages: 56
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard Greenwood
Publisher: Elsevier
Published: 2007-07-03
Total Pages: 487
ISBN-13: 0080489508
DOWNLOAD EBOOKMonitoring pollutants in air, soil and water is a routine requirement in the workplace, and in the wider environment. Passive samplers can provide a representative picture of levels of pollutants over a period of time from days to months by measuring the average concentrations to which they have been exposed. Air monitors are widely used, for instance to measure the exposure of workers to volatile compounds, but also for monitoring the fate of pollutants in the atmosphere. Passive sampling devices are now becomining increasingly used to monitor pollutants in rivers, coastal waters and ground water where contamination results from sources such as domestic and industrial discharges, and the use of agrochemicals. Passive Sampling Techniques in Environmental Monitoring provides a timely collection of information on a set of techniques that help monitor the quality of air, surface and ground waters. Passive sampling can provide an inexpensive means of obtaining a representative picture of quality over a period of time, even where levels of pollutants fluctuate due to discontinuous discharges or seasonal application of chemicals such as pesticides. Recent changes in legislation have increased the pressure to obtain better information than that provided by classical infrequent spot sampling.Brought together in one source, this book looks at the performance of a range of devices for the passive sampling of metals, and of non-polar and polar organic chemicals in air and in water. The strengths and weaknesses and the range of applicability of the technology are considered.* Comprehensive review of passive sampling - covering air, water and majority of available technologies in one volume* Chapters written by international specialist experts * Covers theory and applications, providing background information and guidelines for use in the field
Author: Josep M. Bayona
Publisher: Academic Press
Published: 2012-12-31
Total Pages: 2998
ISBN-13: 0123813743
DOWNLOAD EBOOKComprehensive 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
Author: Eline M. J. Schotsmans
Publisher: John Wiley & Sons
Published: 2017-04-17
Total Pages: 546
ISBN-13: 1118953320
DOWNLOAD EBOOKA truly interdisciplinary approach to this core subject within Forensic Science Combines essential theory with practical crime scene work Includes case studies Applicable to all time periods so has relevance for conventional archaeology, prehistory and anthropology Combines points of view from both established practitioners and young researchers to ensure relevance
Author: Nicolás A. Mazzeo
Publisher:
Published: 2011
Total Pages: 392
ISBN-13: 9789535151739
DOWNLOAD EBOOKHuman beings need to breathe oxygen diluted in certain quantity of inert gas for living. In the atmosphere, there is a gas mixture of, mainly, oxygen and nitrogen, in appropriate proportions. However, the air also contains other gases, vapours and aerosols that humans incorporate when breathing and whose composition and concentration vary spatially. Some of these are physiologically inert. Air pollution has become a problem of major concern in the last few decades as it has caused negative effects on human health, nature and properties. This book presents the results of research studies carried out by international researchers in seventeen chapters which can be grouped into two main sections: a) air quality monitoring and b) air quality assessment and management, and serves as a source of material for all those involved in the field, whether as a student, scientific researcher, industrialist, consultant, or government agency with responsibility in this area.
Author: R. E. Rathbun
Publisher:
Published: 1998
Total Pages: 164
ISBN-13:
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Publisher:
Published: 1999
Total Pages: 190
ISBN-13:
DOWNLOAD EBOOKAuthor: Jonathan Beauchamp
Publisher: Elsevier
Published: 2020-06-06
Total Pages: 724
ISBN-13: 0128223979
DOWNLOAD EBOOKBreathborne biomarkers carry information on the state of human health, and their role in aiding clinical diagnosis or in therapeutic monitoring has become increasingly important as advances in the field are made. Breathborne Biomarkers and the Human Volatilome, Second Edition, provides a comprehensive update and reworking of the 2013 book Volatile Biomarkers, by Anton Amann and David Smith. The new editing team has expanded this edition beyond volatile organic compounds to cover the broad field of breath analysis, including the many exciting developments that have occurred since the first edition was published. This thoroughly revised volume includes the latest discoveries and applications in breath research from the world's foremost scientists, and offers insights into related future developments. It is an ideal resource for researchers, scientists, and clinicians with an interest in breath analysis. - Presents recent advances in the field of breath analysis - Includes an extensive overview of established biomarkers, detection tools, disease targets, specific applications, data analytics, and study design - Offers a broad treatise of each topic, from basic concepts to a comprehensive review of discoveries, current consensus of understanding, and prospective future developments - Acts as both a primer for beginners and a reference for seasoned researchers