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Development Of A Field Portable Mass Spectrometer For Quantitative Analysis Of Volatile Organic Compounds In Air
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Book Synopsis Development of a Field Portable Mass Spectrometer for Quantitative Analysis of Volatile Organic Compounds in Air by : Nicholas Davey
Download or read book Development of a Field Portable Mass Spectrometer for Quantitative Analysis of Volatile Organic Compounds in Air written by Nicholas Davey and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The typical strategy for atmospheric analysis of volatile organic compounds(VOCs), is to collect discrete samples which are then transported to a laboratory foranalysis. This method has limited spatial and temporal resolution, and can be bothcostly and time consuming. To overcome these limitations, a mobile monitoringplatform was developed for real-time quantitative chemical analysis. This workdescribes the development of membrane introduction mass spectrometer andidenti es the necessary requirements to make a reliable and e ective instrument forin-situ chemical analysis. These include, the integration of a membrane interfacewith a miniaturized mass spectrometer, development of a data managementstrategy, reducing the e ects of isobaric interferences and employing an internalstandard for quantitative measurements. Furthermore, the negative e ects ofenvironmental variables, such as the Earth's magnetic eld, were examined ande ectively eliminated. In addition, this work demonstrates quantitative mapping ofatmospheric VOCs in real-time, which allows rapid identi cation of chemical plumesand therefore, areas of potential concern. Both lab and eld-based comparisons ofivmembrane introduction mass spectrometer data and traditional whole air samplingcanister data were undertaken. The primary eld site was near Ft. McMurray, ABwhere baseline data was collected around a steam assisted gravity drainage (SAGD)facility and surrounding public roads. Monitoring for fugitive emissions at thisfacility and surrounding bitumen mining and processing operations is demonstrated.Field data were also obtained, near an industrial site in Ft.Saskatchewan, AB, thatdemonstrate the e cacy of an adaptive sampling strategy. Finally, chemicalionization was investigated as a soft ionization strategy to improve chemicalselectivity for the analysis of complex hydrocarbon mixtures. The development of anin-line liquid chemical ionization reagent delivery system is presented and proposedas an e ective strategy for eliminating interferences arising from biogenic terpenesand alkyl aromatics. In all, this thesis presents the design and implementation of amobile membrane introduction mass spectrometer for atmospheric chemicalanalysis. Results that improve performance and demonstrate the novelty of thedata-type are provided, along with avenues for future development.
Book Synopsis Mobile Field Monitoring of Volatile Organics and Toxic Air Pollutants Using a Mobile Tandem Mass Spectrometer System by : BI. Shushan
Download or read book Mobile Field Monitoring of Volatile Organics and Toxic Air Pollutants Using a Mobile Tandem Mass Spectrometer System written by BI. Shushan and published by . This book was released on 1990 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent marriage of tandem mass spectrometry (MS/MS) to mobile trace atmospheric gas analyzer (TAGA) technology has resulted in an analytical system capable of real-time direct air analysis for toxic air pollutants (TAP), volatile organic compounds (VOC), and odor compounds at concentrations as low as a few parts per trillion. This direct analytical approach obviates problems associated with conventional trapping methods. The latest design of a mobile MS/MS laboratory comprises a customized 9-m (30-ft) transit motor coach configured with a TAGA 6000EM MS/MS system and ancillary equipment. This paper discusses the incorporation of a sorbent cartridge purge unit into the TAGA system to assist in rapidly distinguishing between isomeric compounds (for example, ethylbenzene and xylene) using gas chromatography (GC/MS/MS. This paper also describes combining real-time TAP analysis with meteorological data to rapidly and accurately characterize plume profiles and emission frequencies. The mobility of the TAGA detector permitted the precise location of point source and fugitive emissions. Examples are provided for industrial emissions of methyl ethyl ketone and dimethyl sulfide. A simple method of on-site calibration was used, based upon headspace syringe injection. Under interactive computer control, calibration constants were determined in about 5 min per compound within the ambient air matrix. Other recent software developments are discussed, including the ability to simultaneously monitor up to 128 different compounds with real-time output in concentration units.
Book Synopsis Miniaturization and Mass Spectrometry by : Severine le Gac
Download or read book Miniaturization and Mass Spectrometry written by Severine le Gac and published by Royal Society of Chemistry. This book was released on 2008-12-03 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent explosion in the use of analytical chemistry, particularly in the biological sciences, has led to a need for fast, reliable and highly sensitive tools able to handle small sample sizes. This book illustrates how microfluidics and lab-on-a-chip devices can satisfy the growing need for miniaturized and enhanced analysis. They lend themselves well to mass spectrometric detection as they use samples in the low microlitre range and are handled on a chip. Miniaturization and Mass Spectrometry focuses on one particular technique, mass spectrometry, whose popularity has increased dramatically in the last two decades with the increase in use of biological analysis and the development of two "soft" ionization techniques, ESI and MALDI. These enable the analysis of large but fragile biological molecules such as DNA, proteins and oligosaccharides. The book starts with an introduction to the coupling of microfluidics to mass spectrometry techniques. It then goes on demonstrate the advantages of such a coupling: the MS analysis benefits from improved sample preparation when performed on a chip while MS yields more information on the sample handled on the chip compared to conventional optical detection. A history on the developments in this field, starting from the off-chip coupling to the on-chip ionization, is also provided. Daniel Figeys, a pioneer in the development of microfluidic systems for MS analysis, describes the early beginnings of this hyphenated analysis technique. Solutions to couple microfluidic systems to the two most popular ionization methods, ESI and MALDI, are presented throughout the chapters. Various examples are given of the application of this microfluidics-MS hyphenated analysis technique to proteomics, metabolomics, organic chemistry and forensics. Coverage is not limited to academic research. The development of commercialized systems and their current use for routine biological analysis are also presented. Lastly, a future vision of the integration of the mass spectrometer on the chip is raised, as a last step to yield fully portable systems for on-site analysis.
Book Synopsis Comprehensive Sampling and Sample Preparation by : Josep M. Bayona
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
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1991 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Detection of Harmful Chemicals in the Air Using Portable Membrane Inlet Mass Spectrometry by : Amanda Renee Kretsch
Download or read book Detection of Harmful Chemicals in the Air Using Portable Membrane Inlet Mass Spectrometry written by Amanda Renee Kretsch and published by . This book was released on 2018 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portable mass spectrometry has become an important analytical tool for chemical detection and identification outside of a lab setting. Many variations and applications have been developed to benefit various fields of science. Membrane inlet mass spectrometry is used to allow certain analytes to pass into the mass spectrometer without breaking vacuum or letting in large particulate matter. These two important analytical tools have been applied to the detection of harmful chemicals in the air. Earth-based separations and reverse gas stack modelling are useful mathematical tools that can be used to locate the source of a chemical release by back calculation. Earth-based separations studies the way different molecules will diffuse and separate through the air. Reverse gas stack modelling refers to the concentration differences of a chemical in relation to its distance from its source. These four analytical techniques can be combined to quickly and accurately locate various harmful chemical releases. The same system can be used for many applications and has been tested to detect harmful chemicals within and air-handling system. The monitoring of air-handling systems can greatly reduce the threat of harm to the building occupants by detecting hazardous chemicals and shutting off the air flow to minimize human exposure.
Book Synopsis Field-portable Gas Chromatograph Mass Spectrometer (GC-MS) Unit for Semi-volatile Compound Analysis in Groundwater by : Anthony J. Bednar
Download or read book Field-portable Gas Chromatograph Mass Spectrometer (GC-MS) Unit for Semi-volatile Compound Analysis in Groundwater written by Anthony J. Bednar and published by . This book was released on 2011 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ambient Ionization Mass Spectrometry by : Marek Domin
Download or read book Ambient Ionization Mass Spectrometry written by Marek Domin and published by Royal Society of Chemistry. This book was released on 2014-11-25 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ambient ionization has emerged as one of the hottest and fastest growing topics in mass spectrometry enabling sample analysis with minimal sample preparation. Introducing the subject and explaining the basic concepts and terminology, this book will provide a comprehensive, unique treatise devoted to the subject. Written by acknowledged experts, there are full descriptions on how new ionization techniques work, with an overview of their strengths, weaknesses and applications. This title will bring the reader right up to date, with both applications and theory, and will be suitable as a tutorial text for those starting in the field from a variety of disciplines.
Book Synopsis Indexes by : United States. Environmental Protection Agency
Download or read book Indexes written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-of-Flight Mass Spectrometry and its Applications by : E.W. Schlag
Download or read book Time-of-Flight Mass Spectrometry and its Applications written by E.W. Schlag and published by Newnes. This book was released on 2012-12-02 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resurgence of time-of-flight mass spectrometry (TOF-MS) has had its origin in the simplicity of construction and application of such instruments together with the high transmission and the great increase in resolution that has been achieved. The instrument lends itself naturally to a coupling with pulsed laser sources, though this is not a prerequisite. It also affords a time resolution far beyond that traditionally achieved with mass spectrometric rapid scan techniques - a recent example being the real-time analysis of a multi-component mixture from an automobile exhaust. Furthermore, the mass range appears to be extremely large: mass up to 500 kDa and beyond what is being readily measured in the laboratory today. The present set of contributions attempts to give a survey of current applications from many of the active groups in the field. A variety of new applications are considered which are no doubt just the beginning of large new areas of application. By presenting this work in book form it is hoped that it will be of help to the many groups intending to initiate work in this rapidly expanding new area of mass spectrometry.
Book Synopsis Comprehensive Environmental Mass Spectrometry by : Albert Lebedev
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.
Book Synopsis Environmental Technology Verification Report by :
Download or read book Environmental Technology Verification Report written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Viking SpectraTrak (Trademark) 672 GC/MS is an integrated system combining a temperature programmable gas chromatograph combined with a Hewlett Packard quadrupole mass spectromoter. This self-contained, field transportable system, whose design has been adapted from laboratory technology, uses a contained, chromatographic column and accompanying mass spectrometer to provide separation, identification, and quantification of volatile and semi-volatile organic compounds in sample matrices that include soil, liquid, and gas. The column enables the separation of individual analytes in complex mixtures. A mass spectrum, produced for each compound in the sample, can be used for compound identification and quantification. An integrated computer and data acquisition system enables identification and quantification of the analytes by comparison of detector response with a calibration table constructed from standards of known concentration. The system provides detection limits that range from about 5 ppm for direct gas injection to as low as 5 ppb for many volatile and semi-volatile organic contaminants in soils and liquids.
Book Synopsis EPA Publications Bibliography by : United States. Environmental Protection Agency
Download or read book EPA Publications Bibliography written by United States. Environmental Protection Agency and published by . This book was released on 1985 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Communication by : Tadashi Nakano
Download or read book Molecular Communication written by Tadashi Nakano and published by Cambridge University Press. This book was released on 2013-09-12 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive guide, by pioneers in the field, brings together, for the first time, everything a new researcher, graduate student or industry practitioner needs to get started in molecular communication. Written with accessibility in mind, it requires little background knowledge, and provides a detailed introduction to the relevant aspects of biology and information theory, as well as coverage of practical systems. The authors start by describing biological nanomachines, the basics of biological molecular communication and the microorganisms that use it. They then proceed to engineered molecular communication and the molecular communication paradigm, with mathematical models of various types of molecular communication and a description of the information and communication theory of molecular communication. Finally, the practical aspects of designing molecular communication systems are presented, including a review of the key applications. Ideal for engineers and biologists looking to get up to speed on the current practice in this growing field.
Book Synopsis Volatile Organic Compounds in Environment by : Ki-Hyun Kim
Download or read book Volatile Organic Compounds in Environment written by Ki-Hyun Kim and published by MDPI. This book was released on 2018-04-06 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Volatile Organic Compounds in Environment" that was published in Environments
Book Synopsis Proton Transfer Reaction Mass Spectrometry by : Andrew M. Ellis
Download or read book Proton Transfer Reaction Mass Spectrometry written by Andrew M. Ellis and published by John Wiley & Sons. This book was released on 2013-12-17 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton Transfer Reaction Mass Spectrometry (PTR-MS) is a rapidly growing analytical technique for detecting and identifying very small quantities of chemical compounds in air. It has seen widespread use in atmospheric monitoring and food science and shows increasing promise in applications such as industrial process monitoring, medical science and in crime and security scenarios. Written by leading researchers, this is the first book devoted to PTR-MS and it provides a comprehensive account of the basic principles, the experimental technique and various applications, thus making this book essential reading for researchers, technicians, postgraduate students and professionals in industry. The book contains nine chapters and is divided into two parts. The first part describes the underlying principles of the PTR-MS technique, including • the relevant ion-molecule chemistry • thermodynamics and reaction kinetics • a discussion of ion sources, drift tubes and mass spectrometers • practical aspects of PTR-MS, including calibration. The second part of the book turns its attention to some of the many applications of PTR-MS, demonstrating the scope and benefits, as well as the limitations, of the technique. The chapters that make up the second part of the book build upon the material presented in the first part and are essentially self-contained reviews focusing on the following topics: • environmental science • food science • medicine • homeland security, and • applications of PTR-MS in liquid analysis.
