Analysis of Explosives by Negative Ion Chemical Ionization Mass Spectrometry

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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Analysis of Explosives by Negative Ion Chemical Ionization Mass Spectrometry by : J. Yinon

Download or read book Analysis of Explosives by Negative Ion Chemical Ionization Mass Spectrometry written by J. Yinon and published by . This book was released on 1980 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Negative ion chemical ionization (NCI) mass spectrometry using isobutane as a reagent has been applied to the analysis of explosives. The method is evaluated as complementary to positive ion CI, as both methods can be applied to the same sample. We used a magneticsector-type mass spectrometer without changing the electron multiplier voltage. Under these conditions NCI mass spectra of explosives have been obtained at a sensitivity similar to that of positive ion CI mass spectra.

Analysis of Explosives by Liquid Chromatography-Negative Ion Chemical Ionization Mass Spectrometry

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Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Analysis of Explosives by Liquid Chromatography-Negative Ion Chemical Ionization Mass Spectrometry by : CE. Parker

Download or read book Analysis of Explosives by Liquid Chromatography-Negative Ion Chemical Ionization Mass Spectrometry written by CE. Parker and published by . This book was released on 1982 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: On-line high performance liquid chromatography (HPLC)-negative ion chemical ionization (NCI) mass spectrometry has been used for the analysis of explosives mixtures. The liquid chromatography-mass spectrometry (LC/MS) interface used was a commercial direct liquid introduction interface allowing about 1% of the solvent/sample effluent into the ion source. The HPLC mobile phases were acetronitrile/water (50:50) and methanol/water (50:50), which served also as NCI reagent gases. Standard mixtures containing 2,4,6-trinitrotoluene (TNT), cyclonite (RDX), tetryl, and pentaerythritol tetranitrate (PETN), and a military explosive, tetrytol, have been analyzed by the LC/MS system. The minimum detectable amount of TNT was 100 ng injected on column, or approximately 1 ng to the ion source.

Modern Methods and Applications in Analysis of Explosives

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Publisher : John Wiley & Sons
ISBN 13 : 9780471965626
Total Pages : 320 pages
Book Rating : 4.9/5 (656 download)

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Book Synopsis Modern Methods and Applications in Analysis of Explosives by : Jehuda Yinon

Download or read book Modern Methods and Applications in Analysis of Explosives written by Jehuda Yinon and published by John Wiley & Sons. This book was released on 1996-08-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date handbook, with the latest advances including all the various methods and techniques for analyzing explosives. Explosive compounds and mixtures, residues--their recovery and clean-up procedures--chromatography, polarography, spectroscopy, environmental analysis and mass spectroscopy are among the topics covered.

The Analysis of Explosives

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Publisher : Elsevier
ISBN 13 : 1483140059
Total Pages : 323 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis The Analysis of Explosives by : Jehuda Yinon

Download or read book The Analysis of Explosives written by Jehuda Yinon and published by Elsevier. This book was released on 2013-10-22 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Analysis of Explosives surveys the principles of the various analytical methods, describes how these methods are used for the analysis of explosives, and reviews the major analytical work carried out in this field. Organized into 15 chapters, this book begins with the classification of explosives. Subsequent chapters discuss the different methods for the analysis of explosives. The detection and identification of explosive residues and hidden explosives are also explained. This monograph will be useful as a reference book for chemists in analytical and forensic laboratories, as well as a textbook for graduate students in analytical chemistry and forensic sciences.

The Analysis of Explosives by Tandem Mass Spectrometry

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Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis The Analysis of Explosives by Tandem Mass Spectrometry by : SA. McLuckey

Download or read book The Analysis of Explosives by Tandem Mass Spectrometry written by SA. McLuckey and published by . This book was released on 1985 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data obtained via tandem mass spectrometry are reported for ions derived from several explosives and related compounds. Electron impact ionization, isobutane chemical ionization, and negative chemical ionization methods were used to form ions from each of the compounds studied. These compounds include o-, m-, and p-nitrotoluene; m-dinitrobenzene; 2,4-dinitrotoluene; 2,4,6-trinitrotoluene; 2,4-dinitrophenol; picric acid; 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX); 1,3,5,7-tetranitro-1,3,5,7-tetra-azacyclooctane (HMX); nitroglycerin; pentaerythritol tetranitrate (PETN); and ethylene glycol dinitrate (EGDN) For a given ionization method each class of compounds (that is, nitrobenzenes, heterocyclic nitramines, and nitrate esters) shows common decompositions. This promises to facilitate rapid screening for particular types of explosives by the neutral loss scanning procedure. Of the three ionization methods employed, electron impact ionization is least suitable for analysis of explosives by tandem mass spectrometry. Positive and negative chemical ionization methods, in contrast, tend to generate the types of ions most useful for analysis by tandem mass spectrometry.

Direct Analysis in Real Time Mass Spectrometry

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Publisher : John Wiley & Sons
ISBN 13 : 3527341846
Total Pages : 370 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Direct Analysis in Real Time Mass Spectrometry by : Yiyang Dong

Download or read book Direct Analysis in Real Time Mass Spectrometry written by Yiyang Dong and published by John Wiley & Sons. This book was released on 2018-04-09 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clear, comprehensive, and state of the art, the groundbreaking book on the emerging technology of direct analysis in real time mass spectrometry Written by a noted expert in the field, Direct Analysis in Real Time Mass Spectrometry offers a review of the background and the most recent developments in DART-MS. Invented in 2005, DART-MS offers a wide range of applications for solving numerous analytical problems in various environments, including food science, forensics, and clinical analysis. The text presents an introduction to the history of the technology and includes information on the theoretical background, for exampleon the ionization mechanism. Chapters on sampling and coupling to different types of mass spectrometers are followed by a comprehensive discussion of a broad range of applications. Unlike most other ionization methods, DART does not require laborious sample preparation, as ionization takes place directly on the sample surface. This makes the technique especially attractive for applications in forensics and food science. Comprehensive in scope, this vital text: -Sets the standard on an important and emerging ionization technique -Thoroughly discusses all the relevant aspects from instrumentation to applications -Helps in solving numerous analytical problems in various applications, for example food science, forensics, environmental and clinical analysis -Covers mechanisms, coupling to mass spectrometers, and includes information on challenges and disadvantages of the technique Academics, analytical chemists, pharmaceutical chemists, clinical chemists, forensic scientists, and others will find this illuminating text a must-have resource for understanding the most recent developments in the field.

Advances in Analysis and Detection of Explosives

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Publisher : Springer Science & Business Media
ISBN 13 : 9401706395
Total Pages : 534 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Advances in Analysis and Detection of Explosives by : Jehuda Yinon

Download or read book Advances in Analysis and Detection of Explosives written by Jehuda Yinon and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a collection of papers presented at the 4th International Symposium on Analysis and Detection of Explosives held at the Mitzpeh Rachel Kibbutz Guesthouse in Jerusalem, September 7 to 10, 1992. The Symposium was attended by 150 participants from 20 countries and 50 lectures were given including 4 invited keynote lectures. The purpose of the Symposium, as the previous Symposia, was to present and to discuss new approaches, new applications, new methods and techniques in analysis and detection of explosives. The Symposium was, according to the feedback received from many participants, very successful and met the anticipated expectations. New collaborative initiatives between various laboratories from different countries were formed, which is a necessity in our common goals of law enforcement, aviation security and environmental quality, issues which are closely related to the analysis of explosives. I would like to extend my thanks to the Weizmann Institute of Science and the Israel National Police for sponsoring the Symposium, to the contributing Institutions and Agencies for making this Symposium financially possible, and to the members of the International Committee for helpful advice. I am most thankful to my colleagues from the Organizing Committee, especially Dr. Joseph Almog and Dr. Shmuel Zitrin from the Israel National Police, for helping in the organization of this Symposium.

Organic Explosives Analysis Using On Column-Ion Trap EI/NICI GC-MS with an External Source

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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Organic Explosives Analysis Using On Column-Ion Trap EI/NICI GC-MS with an External Source by : S. Calderara

Download or read book Organic Explosives Analysis Using On Column-Ion Trap EI/NICI GC-MS with an External Source written by S. Calderara and published by . This book was released on 2004 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a standard method by gas chromatography coupled with mass spectrometry (GC/MS) for the analysis of classical organic explosives was developed. This method was validated in the EI mode, based on the XPT 90-210 standard method (1) Detection limits (LOD) and quantitation limits (LOQ) were both determined using electronic impact (EI) and negative ion chemical ionization (NICI) modes. These were compared and results showed that in the NICI mode, detection limits were lower than in the EI mode, thus NICI mode appeared to be the best way to analyze nitrate esters. Results of ion trap MS detection were then compared with those obtained in a previous study (2) with single quadrupolar technology. Major ions that were obtained using ion trap MS detection in these two modes were reported.

Detection Limits for GC/MS Analysis of Organic Explosives

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ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Detection Limits for GC/MS Analysis of Organic Explosives by : ME. Sigman

Download or read book Detection Limits for GC/MS Analysis of Organic Explosives written by ME. Sigman and published by . This book was released on 2001 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Method detection limits are determined and compared for analysis of liquid injections of organic explosives and related compounds by gas chromatography-mass spectroscopy utilizing electron impact (EI), negative ion chemical ionization (NICI), and positive ion chemical ionization (PICI) detection methods. Detection limits were rigorously determined for a series of dinitrotoluenes, trinitrotoluene, two nitroester explosives, and one nitramine explosive. The detection limits are lower by NICI than by EI or PICI for all explosives examined, with the exception of RDX. The lowest detection limit for RDX was achieved in the PICI ionization mode. Judicious choice of the appropriate ionization mode can enhance selectivity and significantly lower detection limits. Major ions are reported for each analyte in EI, PICI, and NICI detection modes.

Chemical Ionization Mass Spectrometry

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Publisher : Taylor & Francis
ISBN 13 : 1351461540
Total Pages : 221 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Chemical Ionization Mass Spectrometry by : Alex. G. Harrison

Download or read book Chemical Ionization Mass Spectrometry written by Alex. G. Harrison and published by Taylor & Francis. This book was released on 2018-05-11 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only comprehensive guide to CIMS applications in structural elucidation and analytical studies Chemical Ionization Mass Spectrometry, 2nd Edition, provides a comprehensive, up-to-date review of CIMS applications in structural elucidation and quantitative analytical studies. For the benefit of readers without a background in gaseous ion chemistry, a thorough review is presented in Chapter 2. Other chapters discuss such topics as reagent ion systems within the context of the thermochemistry and kinetics of the ionization process, including reactions and the type of information obtained; isotopic exchange reactions; stereochemical effects in chemical ionization; and reactive ion/molecule collisions in quadrupole cells. Chemical ionization mass spectra of 13 classes of compounds are discussed in detail to illustrate the influence of different functional groups on the spectra observed. Chemical Ionization Mass Spectrometry, 2nd Edition will be a valuable reference for anyone interested in mass spectrometry and gaseous ion chemistry in general.

The Investigation of Negative Ion Chemical Ionization Gas Chromatography - Mass Spectrometry as a Routine and Sensitive Detection Method for Residue Analysis of Detagonists and Other Anabolic Agents

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Publisher :
ISBN 13 :
Total Pages : 129 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis The Investigation of Negative Ion Chemical Ionization Gas Chromatography - Mass Spectrometry as a Routine and Sensitive Detection Method for Residue Analysis of Detagonists and Other Anabolic Agents by : Ita Walsh

Download or read book The Investigation of Negative Ion Chemical Ionization Gas Chromatography - Mass Spectrometry as a Routine and Sensitive Detection Method for Residue Analysis of Detagonists and Other Anabolic Agents written by Ita Walsh and published by . This book was released on 1993 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Forensic Applications of Mass Spectrometry

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Publisher : CRC Press
ISBN 13 : 9780849382529
Total Pages : 314 pages
Book Rating : 4.3/5 (825 download)

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Book Synopsis Forensic Applications of Mass Spectrometry by : Jehuda Yinon

Download or read book Forensic Applications of Mass Spectrometry written by Jehuda Yinon and published by CRC Press. This book was released on 1994-11-29 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forensic Applications of Mass Spectrometry combines the most current developments in applications of mass spectrometry techniques to forensic analyses. The techniques discussed include: capillary-GC/MS thermospray-LC/MS tandem mass spectrometry (MS/MS) pyrolysis-GC/MS isotope ratio mass spectrometry The applications include: analysis of body fluids and hair for drugs of abuse drug testing in sports analysis of accelerants in fire debris detection of hidden explosives in luggage and mail identification of explosives in post-explosion debris examination of evidential materials (paints, fibers, synthetic polymers) authentication of regulated products (flavoring substances, fruit juices) protection of industrial products by isotopic signature

Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives

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Publisher :
ISBN 13 :
Total Pages : 410 pages
Book Rating : 4.:/5 (472 download)

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Book Synopsis Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives by : Richard Fred Reich

Download or read book Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives written by Richard Fred Reich and published by . This book was released on 2001 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives

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ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives by :

Download or read book Fundamentals and Applications of Atmospheric Pressure Chemical Ionization Quadrupole Ion Trap Mass Spectrometry for the Analysis of Explosives written by and published by . This book was released on 2001 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to develop a liquid chromatography (LC)/atmospheric pressure chemical ionization (APCI)-mass spectrometry (MS) and tandem mass spectrometry (MS/MS) method for the analysis of explosives. APCI and electrospray ionization (ESI) are soft ionization techniques which produce characteristic ions of explosives at atmospheric pressure. Most explosives are susceptible to impurities in the solvent and form adduct ions instead of molecular-type ions. Additives allow specific adduct ions to be preferentially formed, which increases the sensitivity for explosives and improves spectral consistency. However, these adduct ions are formed by weak van der Waals forces that can be easily dissociated by the energy imparted during vaporization.

Analyses of Explosives. Physical-Chemical Data, Chromatograms, Mass-, IR- and NMR-Spectra. Colour Reactions and Thin Layer Chromatography

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Publisher :
ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Analyses of Explosives. Physical-Chemical Data, Chromatograms, Mass-, IR- and NMR-Spectra. Colour Reactions and Thin Layer Chromatography by : Anita Alm

Download or read book Analyses of Explosives. Physical-Chemical Data, Chromatograms, Mass-, IR- and NMR-Spectra. Colour Reactions and Thin Layer Chromatography written by Anita Alm and published by . This book was released on 1978 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Literature searches on identification and analyses of explosives have shown that there is no comprehensive report on analytical methods for this group of substances. (A recently published review is Yinon, J: Analysis of explosives. CRC Crit Rev Anal Chem 7 (1977) 1-35.) Due to this fact the present work was carried out. The report comprises spectra and chromatograms of 25 substances of which eleven are frequently used explosives and the remaining fourteen are nitrotoluene isomers. Instrumental methods have been applied. The spectral analyses include mass spectrometry (electron impact, chemical ionization), infrared spectrometry and nuclear magnetic resonance. The chromatographic analyses include gas chromatography and high pressure liquid chromatography. Data on instrumentation and experimental conditions are given in each chapter. (Author).

Applications of Electron Capture Negative Ion Chemical Ionization Mass Spectrometry to the Analysis of Non-electrophoric Compounds

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Publisher :
ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.:/5 (169 download)

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Book Synopsis Applications of Electron Capture Negative Ion Chemical Ionization Mass Spectrometry to the Analysis of Non-electrophoric Compounds by : Thomas Michael Trainor

Download or read book Applications of Electron Capture Negative Ion Chemical Ionization Mass Spectrometry to the Analysis of Non-electrophoric Compounds written by Thomas Michael Trainor and published by . This book was released on 1987 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Negative Ion Chemical Ionization Mass Spectrometry

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (888 download)

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Book Synopsis Negative Ion Chemical Ionization Mass Spectrometry by : National Institute of Environmental Health Sciences

Download or read book Negative Ion Chemical Ionization Mass Spectrometry written by National Institute of Environmental Health Sciences and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: