Download or read book Gas Chromatography and Electron capture Mass Spectrometry of Organic Environmental Contaminants written by Voon Synn Ong and published by . This book was released on 1994 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Environmental Mass Spectrometry written by Albert Lebedev and published by ILM Publications. This book was released on 2012 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In full colour throughout, this book describes the power of mass spectrometry in resolving environmental issues, demonstrating how real-world complex problems can be solved in a simple and elegant way."--Worldcat.
Download or read book Electron Capture Negative Ion Mass Spectra of Environmental Contaminants and Related Compounds written by Elizabeth A. Stemmler and published by . This book was released on 1988 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Techniques in Gas Chromatography Mass Spectrometry GC MS MS and GC TOF MS for Environmental Chemistry written by and published by Newnes. This book was released on 2013-09-26 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography mass spectrometry (GC-MS) has been the technique of choice of analytical scientists for many years. The latest developments in instrumentation, including tandem mass spectrometry (MS-MS) and time-of-flight (TOF) detectors, have opened up and broadened the scope of environmental analytical chemistry. This book summarizes the major advances and relevant applications of GC-MS techniques over the last 10 years, with chapters by leading authors in the field of environmental chemistry. The authors are drawn from academia, industry and government. The book is organized in three main parts. Part I covers applications of basic GC-MS to solve environmental-related problems. Part II focuses on GC-MS-MS instrumentation for the analyses of a broad range of analysis in environmental samples (pesticides, persistent organic pollutants, endocrine disruptors, etc.). Part III covers the use of more advanced GC-MS techniques using low- and high-resolution mass spectrometry for many applications related to the environment, food and industry. Summarizes the major advances of GC-MS techniques in the last decade Presents relevant applications of GC-MS techniques Covers academic, industrial and governmental sectors
Download or read book Gas Chromatography in Air Pollution Analysis written by V.G. Berezkin and published by Elsevier. This book was released on 1991-04-25 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air pollution determination is one of the most important fields of gas chromatography application in practice. This book provides a systematic description of the main stages of air pollution determination, ranging from sampling problems to the quantitative estimation of the acquired data. Special attention is paid to the problem of gas, vapor, spray and solid particles extraction from air. The main methods of sampling procedure, namely, container utilization, cryogenic concentration, absorption, adsorption, chemisorption and filter usage, and successive impurities extraction are also handled. Sorption theory and the problems of sorption and desorption efficiency for hazardous impurities being extracted from traps with sorbents are discussed in detail. The practical utilization of different sorbents (silica, activated carbon, polymers etc.) to carry out sampling procedures for 200 main pollutants with known TLV (USSR and USA) is also considered. This highly informative book, reflecting several insufficiently known techniques as well as the experience of both western and Soviet researchers, should be of interest to both beginners and skilled researchers.
Download or read book Gas Chromatographic Environmental Analysis written by Fabrizio Bruner and published by John Wiley & Sons. This book was released on 1993-09-06 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Chromatographic Environmental Analysis ist die erste wirklich komplette, aktuelle und einheitliche Darstellung der analytischen Techniken der Umweltchemie in Buchform. Das Buch beschreibt die Grundlagen der Gaschromatographie in der Umweltuntersuchung. Nach einer Einführung in die Gaschromatographie und einer kritischen Bewertung der verschiedenen Säulentypen beschreibt der Autor sorgfältig die notwendige Meßapparatur. Besonderes Augenmerk gilt der Einspritzung sowie den Nachweis- und Kalibrierungssystemen. Ein Akzent liegt auf der Spurenanalytik, die wichtig ist z.B. für die Erkennung von Fluorkohlenwasserstoffen in der Atmosphäre. Daneben werden auch andere Techniken wie HPLC und Massenspektrometrie vorgestellt, um so ein vollständiges Bild der Umweltanalytik von heute und morgen zu geben. Da das Buch für Chemiker und analytische Chemiker sowohl in Forschung als auch Industrie, für Verfahrenstechniker, Umweltbiologen und -geologen geschrieben ist, beschäftigt sich Gas Chromatographic Environmental Analysis besonders mit den Methoden, die in den USA und anderen hochindustrialisierten Staaten eingeführt sind. Damit ist es eine willkommene Bereicherung für die Bibliotheken von chemischen Betrieben, Verwaltungen, Universitäten und Forschungseinrichtungen.
Download or read book Manual for the Certification of Laboratories Analyzing Drinking Water written by and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 305 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 su
Download or read book Electron Capture Negative Ion Mass Spectra of Environmental Contaminants Related Compounds written by R. A. Hites and published by Wiley. This book was released on 1988-05-31 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the ECNI mass spectra of 361 compounds selected to include the major classes of environmental con- taminants, such as those found on the U.S. Environmental Protection Agency's priority pollutant list. Compound clas- ses of environmental importance include halogenated benzenes and phenols, nitrobenzenes and the related dinitro herbicides, polycyclic aromatic hydrocarbons, DDT derivatives, hexachloro- cyclopentadiene pesticides, halogenated biphenyls, dioxins, and dibenzofurans. The spectra, measured with the ion source at 100 oC and 250 oC, are reported graphically. In addition, compound name, Chemical Abstracts registry number, molecular weight, and structure are given. This collection of reference spectra will be of use to environmental scientists and to analytical chemists concerned with the sensitive detection and identification of synthetic chemicals in a wide variety of matrices.
Download or read book Organic Compounds in Soils Sediments Sludges written by T Roy Crompton and published by CRC Press. This book was released on 2012-11-29 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing awareness of the effects of pollutants in the eco-system and on the development of suitable methods of analysis has stimulated a lot of research recently. This volume comprehensively discusses the range of methods available for the analysis and determination of organic compounds in soils, river and marine sediments and industrial slu
Download or read book Open Tubular Column Gas Chromatography in Environmental Sciences written by Francis Onuska and published by Springer. This book was released on 2012-03-19 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The method of choice for analysis of organic pollutants in the environ ment is gas chromatography, using one of the most common detection systems such as flame ionization, electron capture, and mass spectro metric detection. Perhaps the most prevalent difference in practice among the envi ronmental analytical chemists involves the type of column used in gas chromatography. The traditional packed-column gas chromatography is rapidly being replaced with wall-coated open tubular (WCOT) columns. However, in using WCOT columns there are difficulties in reporting analytical data and the means of quantitation. This book is intended to present a survey of the salient features of WCOT column gas chromatography that relate to the selection ofWCOT columns, their technology, separation efficiency, and determination of the principal groups of organic micropollutants, such as hydrocarbons, aromatics, polynuclear aromatic hydrocarbons, organochlorine pollu tants, chlorinated phenols, dioxins, dibenzofurans, ureas, carbamates, and odor-causing substances in complex environmental matrices. Hence, it is the hope of the authors that the content of this book will be of significance to a wide spectrum of disciplines that include environmental chemistry, industrial hygiene and health, toxicology, genetics, and in dustry.
Download or read book Gas Chromatography mass Spectrometry and Nuclear Magnetic Resonance Spectrometry of Some Toxic Environmental Contaminants written by Wen Tong and published by . This book was released on 1995 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Spectrometry of Priority Pollutants written by Brian Middleditch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the list of organic priority pollutants was first published, many mass spec troscopists went scrambling to their reference books. GC-MS was mandated for the analysis of 114 compounds, yet the spectra of many of them, if they had been recorded at all, were scattered throughout the literature. Moreover, it soon became apparent that, even if a sufficient number of instruments could be made available to undertake the task of monitoring 114 substances in the effluents of 21 categories of industry, the personnel could not be trained to perform the analyses and interpret the results. The solution to this problem has been the development of highly automated mass spectrometers which can be operated by personnel without the traditional research training. This book is for the new breed of mass spectroscopist who is not interested in the esoteric details of mass spectral fragmentation, but who merely wishes to identify specific pollutants in effluents. Our inclusion of com prehensive lists of synonyms and bibliographic data should make the book of even greater value to the reader who is not too familiar with the idiosyncrasies of chemical nomenclature and the scientific literature. The experienced mass spectroscopist should also benefit from having all of the data collected together in one volume. This is a book to be used, rather than deposited in a library distant from the laboratory: we would hope that it will fmd a place on top of every mass spectrometer used for the analysis of priority pollutants.
Download or read book Chromatography of Natural Treated and Waste Waters written by T.R Crompton and published by CRC Press. This book was released on 2003-05-22 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromatography of Natural, Treated and Waste Waters is the first book to bring together information of a range of chromatographic techniques in all types of water, precipitation to sewage effluents. Organic and inorganic compounds, cations, anions and elements are all discussed. Particular attention is paid to multi compound analysis of water, and
Download or read book Electron Capture Negative Ion Mass Spectrometry written by Elizabeth Ann Stemmler and published by . This book was released on 1986 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evaluation of Environmental Contaminants Using Static Headspace Gas Chromatography Mass Spectrometry Vacuum Ultraviolet Detection and Ionic Liquids written by Emmanuel Varona -Torres and published by . This book was released on 2021 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: In analytical chemistry the term "headspace" refers to the vapor that forms above a sample (liquid or solid) in a closed container. Headspace (HS) sampling is the method to promote partition between volatile components from the sample matrix and then analyzed by gas chromatography (GC). HS is an excellent technique to introduce a"clean" vapor sample into the GC and avoids introduction of non-volatile components from the sample matrix and often used for determination of volatile organic compounds (VOCs) with minimal or no additional sample preparation. Concerns about the environmental impact of fossil fuel extraction techniques (i.e.,hydraulic fracturing and other well stimulation techniques) have risen due to its expansion in the United States and other countries. Robust atmospheric studies have attributed to the emissions of rogue greenhouse gases and VOCs to mechanical inefficiencies commonly found in the midstream production process, such as gas flaring stations, condensate tanks, and pipelines. However, the interplay between fossil fuel extraction activities and soil quality has not received much attention. Utilizing headspace gas chromatography mass spectrometry (HS-GC-MS) and an establish standard method by the Environmental Protection Agency (EPA), we present a study of soil near oil and gas production in verified emissions of volatile contaminants. The findings provide an initial indication of the interactions between atmospheric VOCs contamination events and the accumulation of those contaminants in soil where, varying soil texture was found to contribute to total amount detected. Room temperature ionic liquids (RTILs) have received significant attention in HS analysis due to their unique physiochemical properties (i.e., negligible vapor pressures, tunable thermal stabilities, tunable viscosities and wide liquid range). RTILs are salts in which ions are poorly coordinated, resulting in a liquid state at room temperature. The evaluation of RTILs as co-solvent in soil analysis, in an effort to increase sensitivity, reduce and normalized the matrix-effects associated with varying soil compositions. It was found that hydrophilic RTILs investigated, 1-ethyl-3-methylimidazolium ethylsulfate ([EMIM][ESO4]), 1-ethyl-3-methylimidazolium diethyl phosphate ([EMIM][DEP]), tris(2-hydroxyethyl)methylammonium methylsulfate ([MTEOA][MeOSO3]), reduced matrix-effect from varying soil composition thus, reducing the need to characterized and matrix-match soil textures for calibration purposes. It also reduced the analysis time and increased precision and accuracy for the quantification of VOCs in variable soil matrices relative to standard methods. Understanding the thermodynamic interactions between an analyte and the sample phase is of paramount importance when eliciting a co-solvent in HS analysis. The partition coefficient (KP) is an equilibrium constant that describes the distribution of the analyte between two phases (i.e., sample phase/ gas phase). Kp determinations by HSGC is acquired by two methods: vapor phase calibration (VPC) and phase ratio variation (PRV). Kp determinations of analytes in HS co-solvents can help guide the analyst in which to use for the analysis at hand. Here we demonstrate the ability of using a pressurized - loop HS system in conjunction with gas chromatography vacuum ultraviolet detection (HS-GC-VUV) to directly calculate the concentration of the analyte in the gas phase, by pseudo-absolute quantification (PAQ), thus allowing for quick determination of Kp and other thermodynamic properties such as enthalpy ( ∆H )and entropy (∆S ) of the system. The Kp determinations by PAQ were comparable to those obtained using theVP C method, with differences in the average values ranging
Download or read book Mass Spectrometry in Environmental Sciences written by O. Hutzinger and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past ten years a variety of methods involving mass spectrom etry have been developed for the analysis of environmentally important compounds. Much has been accomplished in that period to solve some of the important problems in the field. Growth of this methodology and its accomplishments has reached the point where an individual scientist can no longer have an in-depth knowledge of all the areas involved. We have attempted to provide this in-depth picture to those scientists con cerned by having the important topics treated by experts in the subject matter. In order to provide all the relevant material in one volume we begin with the general topics which provide the basic background material necessary to understand the techniques discussed in the in-depth topics. These general chapters are kept brief, containing only the essentials needed by the working scientist to deal with the practical applications. References in these chapters are chosen to permit a more complete study of each chapter. The concept for this book was developed during the activities of two of the editors under a NATO travel grant. These editors gratefully acknowledge this support which made the initial planning of this book possible. The editors would like to thank the individual authors of each chap ter for their cooperation and generously giving of their time for this project.