Download or read book Trace Analysis of Peroxide Explosives by High Performance Liquid Chromatography Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry HPLC APCI MS MS for Forensic Applications written by X. Xu and published by . This book was released on 2004 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: An HPLC-APCI-MS(/MS) method for the (trace) analysis of the most commonly encountered peroxide explosives, hexamethylenetriperoxidediamine (HMTD) and triacetonetriperoxide (TATP), has been developed. With this method, HMTD and TATP have been analyzed in the same run. (Pseudo-)molecular ions of these peroxides have been obtained as base peak under the same condition. A series of product ions was produced from these pseudo-molecular ions ([HMTD-1]+ and [TATP + NH4]+) in the MS/MS analysis. We also pioneeredin showing that TATP molecular ion [TATP-H]+ can be observed with HPLC-MS/MS. The limit of detection for HMTD and TATP was 0.26 and 3.3 ng, respectively, on column by HPLC-MS in the Full Scan mode and 0.08 and 0.8, respectively, by HPLC-APCI-MS/MS in Selected Reaction Monitoring (single ass unit) mode. The method presented has been applied successfully for the identification of peroxides in the bulk solid state (powder sample), as well as in post-blast extracts originating from a forensic case. For the post-blast extracts, the use of tandem MS has been shown clearly to be of crucial importance for the identification and detection of the peroxide explosives.
Download or read book Forensic Investigation of Explosions written by David R. Gaskell and published by CRC Press. This book was released on 2011-11-02 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its second edition, Forensic Investigation of Explosions draws on the editor‘s 30 years of explosives casework experience, including his work on task forces set up to investigate major explosives incidents. Dr. Alexander Beveridge provides a broad, multidisciplinary approach, assembling the contributions of internationally recognized experts
Download or read book Emerging Technologies for the Analysis of Forensic Traces written by Simona Francese and published by Springer Nature. This book was released on 2019-09-30 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a line of communication between academia and end users/practitioners to advance forensic science and boost its contribution to criminal investigations and court cases. By covering the state of the art of promising technologies for the analysis of trace evidence using a controlled vocabulary, this book targets the forensics community as well as, crucially, informing the end users on novel and potential forensic opportunities for the fight against crime. By reporting end users commentaries at the end of each chapter, the relevant academic community is provided with clear indications on where to direct further technological developments in order to meet the law requirements for operational deployment, as well as the specific needs of the end users. Promising chemistry based technologies and analytical techniques as well as techniques that have already shown to various degrees an operational character are covered. The majority of the techniques covered have imaging capabilities, that is the ability to visualize the distribution of the target molecules within the trace evidence recovered. This feature enhances intelligibility of the information making it also accessible to a lay audience such as that typically found with a court jury. Trace evidence discussed in this book include fingermarks, bodily fluids, hair, gunshot residues, soil, ink and questioned documents thus covering a wide range of possible evidence recovered at crime scenes.
Download or read book Forensic Investigation of Clandestine Laboratories written by Donnell R. Christian, Jr. and published by CRC Press. This book was released on 2022-06-20 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forensic Investigation of Clandestine Laboratories, Second Edition is fully updated to address all aspects of the forensic investigation of clandestine laboratories. While, the first edition focused on the domestic clandestine manufacture of contraband substances, this edition expands the scope to more fully address the clandestine manufacture of explosives that have become a threat that is global in nature. In clandestine laboratory operations, equipment is often simple, household chemical products are utilized, and the education of the operators basic. In fact, most of the time these elements individually are perfectly legal to sell and possess. However, the combination of all these elements is what becomes the scene of illicit activity and a criminal operation. In response to the increase in use of homemade explosive mixtures by terrorists, both domestically and internationally, the section clandestine manufacture of explosives is greatly enhanced. Topics are presented in a manner which, while detailed, will not compromise the tactics, techniques, or procedures utilized by law enforcement and military personnel in their ability to combat the clandestine manufacture of contraband substances and the battle against domestic and international terrorism. Key features: • Examines tell-tale signs to look for in recognizing a clandestine lab • Outlines how to safely process the site of a clandestine lab • Details how to analyze collected evidence in the examination laboratory • Provides guidelines as to what to derive from the physical evidence • Offers specific tactics to effectively present the opinions associated with evidence that has been collected during the investigation in a written report, military style briefing or to a jury in a legal proceeding. Forensic Investigation of Clandestine Laboratories, Second Edition guides the reader through the process of recognizing these illegal manufacturing operations. Then it examines the methods as to how to compile the volume of associated evidence into a package that can be presented in a court of law, or to military commanders for decisive action. It is an invaluable resource, that will prove useful to chemistry lab technicians, forensic investigators, fire and first responder professionals, military personnel, police investigative agencies and narcotics units, and lawyer trying cases involving clandestine labs.
Download or read book Mass Spectrometry Handbook written by Mike S. Lee and published by John Wiley & Sons. This book was released on 2012-04-16 with total page 1362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its enormous sensitivity and ease of use, mass spectrometry has grown into the analytical tool of choice in most industries and areas of research. This unique reference provides an extensive library of methods used in mass spectrometry, covering applications of mass spectrometry in fields as diverse as drug discovery, environmental science, forensic science, clinical analysis, polymers, oil composition, doping, cellular research, semiconductor, ceramics, metals and alloys, and homeland security. The book provides the reader with a protocol for the technique described (including sampling methods) and explains why to use a particular method and not others. Essential for MS specialists working in industrial, environmental, and clinical fields.
Download or read book Forensic Investigation of Explosions Second Edition written by Alexander Beveridge and published by CRC Press. This book was released on 2011-11-02 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its second edition, Forensic Investigation of Explosions draws on the editor’s 30 years of explosives casework experience, including his work on task forces set up to investigate major explosives incidents. Dr. Alexander Beveridge provides a broad, multidisciplinary approach, assembling the contributions of internationally recognized experts who present the definitive reference work on the subject. Topics discussed include: The physics and chemistry of explosives and explosions The detection of hidden explosives The effect of explosions on structures and persons Aircraft sabotage investigations Explosion scene investigations Casework management The role of forensic scientists Analysis of explosives and their residues Forensic pathology as it relates to explosives Presentation of expert testimony With nearly 40 percent more material, this new edition contains revised chapters and several new topics, including: A profile of casework management in the UK Forensic Explosives Laboratory, one of the world’s top labs, with a discussion of their management system, training procedures, and practical approaches to problem solving Properties and analysis of improvised explosives An examination of the Bali bombings and the use of mobile analytical techniques and mobile laboratories The collection, analysis, and presentation of evidence in vehicle-borne improvised explosive device cases, as evidenced in attacks on US overseas targets This volume offers valuable information to all members of prevention and post-blast teams. Each chapter was written by an expert or experts in a specific field and provides well-referenced information underlying best practices that can be used in the field, laboratory, conference room, classroom, or courtroom.
Download or read book Interpol s Forensic Science Review written by Niamh Nic Daeid and published by CRC Press. This book was released on 2017-08-09 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every three years, worldwide forensics experts gather at the Interpol Forensic Science Symposium to exchange ideas and discuss scientific advances in the field of forensic science and criminal justice. Drawn from contributions made at the latest gathering in Lyon, France, Interpol's Forensic Science Review is a one-source reference providing a comp
Download or read book Aspects of Explosives Detection written by Maurice Marshall and published by Elsevier. This book was released on 2011-07-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detection and quantification of trace chemicals is a major thrust of analytical chemistry. In recent years much effort has been spent developing detection systems for priority pollutants. Less mature are the detections of substances of interest to law enforcement and security personnel:in particular explosives. This volume will discuss the detection of these, not only setting out the theoretical fundamentals, but also emphasizing the remarkable developments in the last decade. Terrorist events—airplanes blown out of the sky (PanAm 103 over Lockerbie) and attacks on U.S. and European cities (Trade Center in New York and the Murrah Federal Building in Oklahoma City, railways in London and Madrid)--emphasize the danger of concealed explosives. However, since most explosives release little vapor, it was not possible to detect them by technology used on most organic substances. After PanAm 103 was downed over Scotland, the U.S. Congress requested automatic explosive detection equipment be placed in airports. This volume outlines the history of explosive detection research, the developments along the way, present day technologies, and what we think the future holds. Written by experts in the field who set out both the scientific issues and the practical context with authority Discusses and describes the threat Describes the theoretical background and practical applications of both trace and bulk explosives detection
Download or read book Ceramic Nanomaterials and Nanotechnology IV written by Richard M. Lane and published by John Wiley & Sons. This book was released on 2012-04-18 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of the nanotechnology era, research and development in this field has experienced an explosive growth in academia and industry. Topics covered in this book include synthesis and characterization of nanomaterials, nanoscale phenomena in electronic ceramics, nanostructured bioceramics, industrial development and application, and much more.
Download or read book Highly Sensitive Screening Method for Nitroaromatic Nitramine and Nitrate Ester Explosives by High Performance Liquid Chromatography Atmospheric Pressure Ionization Mass Spectrometry HPLC API MS in Forensic Applications written by X. Xu and published by . This book was released on 2004 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A highly sensitive screening method based on high performance liquid chromatography atmospheric pressure ionization mass spectrometry (HPLC-API-MS) has been developed for the analysis of 21 nitroaromatic, nitramine and nitrate ester explosives, which include the explosives most commonly encountered in forensic science. Two atmospheric pressure ionization (API) methods, atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI), and various experimental conditions have been applied to allow for the detection of all 21 explosive compounds. The limit of detection (LOD) in the full-scan mode has been found to be 0.012-1.2 ng on column for the screening of most explosives investigated. For nitrobenzene, an LOD of 10 ng was found with the APCI method in the negative mode. Although the detection of nitrobenzene, 2-, 3-, and 4-nitrotoluene is hindered by the difficult ionization of these compounds, we have found that by forming an adduct with glycine, LOD values in the range of 3-16 ng on column can be achieved. Compared with previous screening methods with thermospray ionization, the API method has distinct advantages, including simplicity and stability of the method applied, an extended screening range and a low detection limit for the explosives studied.
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.
Download or read book Scientific Evidence written by Paul C. Giannelli and published by . This book was released on 2007 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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.
Download or read book Development of a Liquid Chromatography tandem Mass Spectrometry LC MS MS Method for the Analysis of Peroxide Explosive Residues on Building Materials written by Monica L. Vermillion and published by . This book was released on 2011 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Ceramic Nanomaterials and Nanotechnology written by and published by . This book was released on 2006 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
