Analysis Of Explosives By Liquid Chromatography Negative Ion Chemical Ionization Mass Spectrometry

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

Author : CE. Parker
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.

Analysis of Explosives by Negative Ion Chemical Ionization Mass Spectrometry

Author : J. Yinon
Publisher :
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.

Modern Methods and Applications in Analysis of Explosives

Author : Jehuda Yinon
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

Author : Jehuda Yinon
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

Author : SA. McLuckey
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.

Forensic Applications of Mass Spectrometry

Author : Jehuda Yinon
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

Analysis of Explosives by Liquid Chromatography/Thermospray/Mass Spectrometry

Author : DW. Berberich
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Analysis of Explosives by Liquid Chromatography/Thermospray/Mass Spectrometry by : DW. Berberich

Download or read book Analysis of Explosives by Liquid Chromatography/Thermospray/Mass Spectrometry written by DW. Berberich and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have investigated the application of liquid chromatography/thermospray/mass spectrometry (LC/TSP/MS) to the separation and identification of commercial and military explosives. The LC was performed using a reverse phase column with an isocratic mobile phase and a flow rate of 1.5 mL/min. These conditions resulted in retention times of less than 3 min for common explosives, permitting rapid analysis. The TSP was operated in the filamenton ionization mode which yielded unique spectra for the following explosive compounds: 1,3,5-trinitrotriazacyclohexane (RDX), 1,3,5,7-tetranitro-1,3,4,7-tetraazacyclooctane (HMX), trinitrotoluene (TNT), dinitrotoluene (DNT), pentaerythritoltetranitrate (PETN), nitroglycerin (NG), diphenylamine (DPA), and monomethylaminenitrate (MMAN) The majority of explosives yielded only negative ion thermospray mass spectra, which exhibited a strong [M + CH3COO]−; however, components of double-based smokeless powders also yielded positive ion spectra. An important forensic science application of this work is the identification of commercial and military explosives. Spectra which were obtained from the residues of improvised explosive devices of military C4 and a double-based smokeless powder allowed identification of the pure explosive compounds, LC/TSP(filament-on)/MS provided limits of detection less than 2.5 picograms for PETN.

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

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

Author : Anita Alm
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).

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

Download 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 PDF Online Free

Author : Ita Walsh
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:

Advances in Analysis and Detection of Explosives

Author : Jehuda Yinon
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.

Detection Limits for GC/MS Analysis of Organic Explosives

Author : ME. Sigman
Publisher :
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.

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

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

Author : Richard Fred Reich
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

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

Author :
Publisher :
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.

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

Author : S. Calderara
Publisher :
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.

Fundamentals and Applications of Fourier Transform Mass Spectrometry

Author : Philippe Schmitt-Kopplin
Publisher : Elsevier
ISBN 13 : 0128140143
Total Pages : 778 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Fundamentals and Applications of Fourier Transform Mass Spectrometry by : Philippe Schmitt-Kopplin

Download or read book Fundamentals and Applications of Fourier Transform Mass Spectrometry written by Philippe Schmitt-Kopplin and published by Elsevier. This book was released on 2019-08-11 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals and Applications of Fourier Transform Mass Spectrometry is the first book to delve into the underlying principles on the topic and their linkage to industrial applications. Drs. Schmitt-Kopplin and Kanawati have brought together a team of leading experts in their respective fields to present this technique from many different perspectives, describing, at length, the pros and cons of FT-ICR and Orbitrap. Numerous examples help researchers decide which instruments to use for their particular scientific problem and which data analysis methods should be applied to get the most out of their data. Covers FT-ICR-MS and Orbitrap’s fundamentals, enhancing researcher knowledge Includes details on ion sources, data processing, chemical analysis and imaging Provides examples across the wide spectrum of applications, including omics, environmental, chemical, pharmaceutical and food analysis

Opportunities to Improve Airport Passenger Screening with Mass Spectrometry

Author : Committee on Assessment of Security Technologies for Transportation
Publisher : National Academies Press
ISBN 13 : 9780309092401
Total Pages : 35 pages
Book Rating : 4.0/5 (924 download)

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Book Synopsis Opportunities to Improve Airport Passenger Screening with Mass Spectrometry by : Committee on Assessment of Security Technologies for Transportation

Download or read book Opportunities to Improve Airport Passenger Screening with Mass Spectrometry written by Committee on Assessment of Security Technologies for Transportation and published by National Academies Press. This book was released on 2004-05-26 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protection of the traveling public from terrorist threats involving explosives is a major goal of the Transportation Security Administration (TSA). For 20 years, the TSA (and the Federal Aviation Administration before it) have been investing in technologies to meet that goal. To support that activity, the TSA has asked the NRC to assess a variety of technological opportunities for offering such protection. The NRC is approaching this assignment by issuing a series of reports on chosen technology applications. This is the first of that series and presents an assessment of mass spectrometry for enhanced trace detection (ETD) of chemicals contained in explosives. The report describes limitations of trace detection in general and the current technologies in particular. It then presents a discussion of the potential for mass spectrometry to improve EDT including challenges faced by such a system, recommendations for starting a program to take advantage of mass spectrometry, and recommendations for a phased implementation plan.

Direct Analysis in Real Time Mass Spectrometry

Author : Yiyang Dong
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.