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The Analysis Of Small Glass Fragments Using Inductively Coupled Plasma Mass Spectrometry
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Book Synopsis The Analysis of Small Glass Fragments Using Inductively Coupled Plasma Mass Spectrometry by : T. Parouchais
Download or read book The Analysis of Small Glass Fragments Using Inductively Coupled Plasma Mass Spectrometry written by T. Parouchais and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductively coupled plasma mass spectrometry using solution nebulization has the ability to analyze up to 70 elements with good precision, accuracy, and sensitivity and is, therefore, well suited for the trace element analysis of glass. However, the technique places severe restrictions on sample preparation. High concentrations of acids or dissolved solids, changes in sample viscosity and molecular compound formation can cause physical, spectral and chemical interference. Solubilization of the glass samples based on a three acid digestion procedure (HF, HNO3, HCl 2:1:1) has been found to minimize these problems. Up to 62 elements have been determined in a range of glass samples. Glasses that could not be distinguished on the basis of refractive index measurement could be discriminated. A procedure of measuring a range of elemental ratios, which eliminated the need for weighing, was used to compare small samples typical of casework.
Book Synopsis Elemental Analysis of Glass Fragments by ICP-MS as Evidence of Association by : S. Montero
Download or read book Elemental Analysis of Glass Fragments by ICP-MS as Evidence of Association written by S. Montero and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductively coupled plasma mass spectrometry (ICP-MS) was used to analyze glass evidence from a case in which a person broke a window in each of 15 vehicles in a parking lot in order to gain entry into the vehicles. The results of the analysis by traditional methods, which measure the properties of color, thickness, density, and refractive index, are also reported. A total of 15 known samples representing the windows on the cars and 42 questioned glass fragments recovered from the suspect and the police vehicle where the suspect was sitting were submitted for analysis. Density comparisons separated one of the known samples into three samples, increasing the number of known samples from 15 to 17. The concentrations of 16 elements were measured for all but three of the samples using an external calibration ICP-MS method with internal standardization. Color assessment (non-instrumental) separated the 17 known samples into two groups, and refractive index measurements resulted in six groups when the Emmons double variation method was used and ten groups when the Glass Refractive Index Measurement 2 (GRIM2) system was used. Elemental analysis, by itself, differentiated all of the known samples from each other and associated four of the known sample fragments with several of the questioned sample fragments. The informing power of RI, density, and elemental analysis comparisons is evaluated and a summary of the case results is reported.
Book Synopsis Characterisation of Glass Fragments by Trace Element Analysis Using Inductively Coupled Plasma Mass Spectrometry by : Armand Zurhaar
Download or read book Characterisation of Glass Fragments by Trace Element Analysis Using Inductively Coupled Plasma Mass Spectrometry written by Armand Zurhaar and published by . This book was released on 1988 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forensic Glass Analysis by ICP-MS, Volume II by : Abbegayle Jeanne Dodds
Download or read book Forensic Glass Analysis by ICP-MS, Volume II written by Abbegayle Jeanne Dodds and published by . This book was released on 2005 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inductively Coupled Plasma-Mass Spectrometry by : Howard E. Taylor
Download or read book Inductively Coupled Plasma-Mass Spectrometry written by Howard E. Taylor and published by Academic Press. This book was released on 2001 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: It also includes information on processing and interpreting results to obtain high-quality data.".
Book Synopsis Inductively Coupled Plasma Spectrometry and its Applications by : Steve J. Hill
Download or read book Inductively Coupled Plasma Spectrometry and its Applications written by Steve J. Hill and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Inductively Coupled Plasma Spectrometry andits Applications was written as a handbook for users who wanted abetter understanding of the theory augmented by a practical insightof how best to approach a range of applications, and to provide auseful starting point for users trying an approach or technique newto them. These objectives have been retained in the second editionbut a slight shift in emphasis gives the volume an overallperspective that is more forward looking. Structured into 11 chapters, the current edition is a thoroughrevision of the original, covering the principles of inductivelycoupled plasmas, instrumentation, methodology and applicationswithin environmental analysis, earth science, food science andclinical medicine. Each chapter, written by internationallyrecognised leaders in their specific subject areas, provides enoughdetail to be useful to both the new and experienced users. Fullaccount is taken of recent developments, such as high resolutioninstruments, novel detection systems and electrospraytechniques. Written for all analytical scientists but particularly thoseinvolved in atomic spectroscopy and in environmental, geochemical,clinical or food analysis, this timely and informative book will bean essential reference in their use of inductively coupled plasmasto achieve their own scientific goals.
Book Synopsis Forensic Interpretation of Glass Evidence by : James Michael Curran
Download or read book Forensic Interpretation of Glass Evidence written by James Michael Curran and published by CRC Press. This book was released on 2000-06-27 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for forensic scientists and students, this book provides the necessary statistical tools and methodology for introducing forensic glass evidence into the laboratory. It contains an introductory chapter on glass evidence procedures and analysis before covering topics such as classical approaches to handling glass evidence, the application of Bayesian statistics to forensic science, and the use of histograms. The authors present both the physical and chemical examinations performed on glass along with their interpretations. With free software available for downloading at the authors' web site, scientists can apply their own data and draw conclusions using the principles detailed in the text.
Book Synopsis Inductively Coupled Plasma Mass Spectrometry by : Akbar Montaser
Download or read book Inductively Coupled Plasma Mass Spectrometry written by Akbar Montaser and published by John Wiley & Sons. This book was released on 1998-04-22 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alles über ICP-MS in einem Band! Renommierte Autoren informieren Sie über Theorie, Anwendung und instrumentelle Ausrüstung von A bis Z. Grundlagen werden ebenso behandelt wie neueste Entwicklungen, etwa bei Probenpräparation und Einsatz von Hochfrequenzgeneratoren. Enthält eine Fülle bisher unveröffentlichten Materials!
Book Synopsis Forensic Examination of Glass and Paint by : Brian Caddy
Download or read book Forensic Examination of Glass and Paint written by Brian Caddy and published by CRC Press. This book was released on 2001-08-23 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents an approach to the analysis of glass and paint as they occur as trace evidence in forensic cases. Each chapter is written by an expert in their particular area. The book is divided into two sections: one referring to paint and one referring to glass. Each section covers an introduction to the composition of these materials an
Book Synopsis Forensic Glass Analysis by ICP-MS, Volume I by : Abbegayle Jeanne Dodds
Download or read book Forensic Glass Analysis by ICP-MS, Volume I written by Abbegayle Jeanne Dodds and published by . This book was released on 2005 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Molecular Chemistry of Glasses by Infrared Microspectroscopy and Its Use in Forensic Glass Discrimination and Classification by : Brooke Weinger Kammrath
Download or read book A Study of the Molecular Chemistry of Glasses by Infrared Microspectroscopy and Its Use in Forensic Glass Discrimination and Classification written by Brooke Weinger Kammrath and published by . This book was released on 2012 with total page 2218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of the molecular structure of glass is a novel forensic method that provides knowledge about glass chemistry that is not currently employed by forensic scientists as well as improves the discriminatory power within this class of transfer evidence. Infrared (IR) spectra contain extensive information about the molecular structure of the complex silicates in commercial glasses. This research is based on measuring the attenuated total reflection (ATR) mid-IR spectra of soda-lime silicate glasses to detect variations of the molecular structure to assist in the comparison of glass evidence. The use of ATR mid-IR spectra for the discrimination and classification of glasses was investigated. Discrimination error rates of approximately 5% and classification by end-product (window or container) error rates on the order of 2% were achieved with principle component analysis-canonical variate analysis (PCA-CVA) hold-one-out cross validation (HOO-CV) on the first and second derivative spectra of 153 soda-lime silicate glasses. Silicate glass is a common and valuable class of evidence encountered in criminal and civil litigation. Glass is an excellent source of physical evidence because it is brittle and fractures into fragments that are easily transferred from the source to victim and/or perpetrator. The challenge to the forensic scientist is to reliably associate these fragments with their source with high probative value. The mid-IR microprobe analysis of glass requires only minimal additional sample preparation to that which is already done for refractive index (RI) analysis and uses IR investigated samples that are the same size and smaller than the ablated hole made in laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Thus mid-IR microprobe analysis can be used to provide additional discrimination for glass samples that are indistinguishable by RI and too small for elemental analysis. ATR mid-IR spectral analysis provides information about the molecular structure of soda-lime silicate glass to support other traditional analysis and strengthen the association of this evidence.
Download or read book Forensic Science written by Evgeny Katz and published by John Wiley & Sons. This book was released on 2016-06-27 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concentrating on the natural science aspects of forensics, top international authors from renowned universities, institutes, and laboratories impart the latest information from the field. In doing so they provide the background needed to understand the state of the art in forensic science with a focus on biological, chemical, biochemical, and physical methods. The broad subject coverage includes spectroscopic analysis techniques in various wavelength regimes, gas chromatography, mass spectrometry, electrochemical detection approaches, and imaging techniques, as well as advanced biochemical, DNA-based identification methods. The result is a unique collection of hard-to-get data that is otherwise only found scattered throughout the literature.
Book Synopsis Fundamental and Methodological Investigations for the Improvement of Elemental Analysis by Inductively Coupled Plasma Mass Soectrometry by :
Download or read book Fundamental and Methodological Investigations for the Improvement of Elemental Analysis by Inductively Coupled Plasma Mass Soectrometry written by and published by . This book was released on 2012 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a variety of studies meant to improve the analytical performance of inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation (LA) ICP-MS. The emission behavior of individual droplets and LA generated particles in an ICP is studied using a high-speed, high frame rate digital camera. Phenomena are observed during the ablation of silicate glass that would cause elemental fractionation during analysis by ICP-MS. Preliminary work for ICP torch developments specifically tailored for the improvement of LA sample introduction are presented. An abnormal scarcity of metal-argon polyatomic ions (MAr) is observed during ICP-MS analysis. Evidence shows that MAr+ ions are dissociated by collisions with background gas in a shockwave near the tip of the skimmer cone. Method development towards the improvement of LA-ICP-MS for environmental monitoring is described. A method is developed to trap small particles in a collodion matrix and analyze each particle individually by LA-ICP-MS.
Book Synopsis Forensic Chemistry by : Jay A. Siegel
Download or read book Forensic Chemistry written by Jay A. Siegel and published by John Wiley & Sons. This book was released on 2015-10-05 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forensic Chemistry: Fundamentals and Applications presents a new approach to the study of applications of chemistry to forensic science. It is edited by one of the leading forensic scientists with each chapter written by international experts specializing in their respective fields, and presents the applications of chemistry, especially analytical chemistry, to various topics that make up the forensic scientists toolkit. This comprehensive, textbook includes in-depth coverage of the major topics in forensic chemistry including: illicit drugs, fibers, fire and explosive residues, soils, glass and paints, the chemistry of fingerprint recovery on porous surfaces, the chemistry of firearms analysis, as well as two chapters on the key tools of forensic science, microscopy and chemometrics. Each topic is explored at an advanced college level, with an emphasis, throughout the text, on the use of chemical tools in evidence analysis. Forensic Chemistry: Fundamentals and Applications is essential reading for advanced students of forensic science and analytical chemistry, as well as forensic science practitioners, researchers and faculty, and anyone who wants to learn about the fascinating subject of forensic chemistry in some depth. This book is published as part of the AAFS series 'Forensic Science in Focus'.
Download or read book Mute Witnesses written by Max M. Houck and published by Academic Press. This book was released on 2001 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using case studies, some of a high-profile nature, the contributors to this expert guide show how trace evidence, when handled correctly, can change the course of a criminal investigation and often affect the final outcome.
Download or read book Forensic Science written by Evgeny Katz and published by John Wiley & Sons. This book was released on 2016-03-08 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concentrating on the natural science aspects of forensics, top international authors from renowned universities, institutes, and laboratories impart the latest information from the field. In doing so they provide the background needed to understand the state of the art in forensic science with a focus on biological, chemical, biochemical, and physical methods. The broad subject coverage includes spectroscopic analysis techniques in various wavelength regimes, gas chromatography, mass spectrometry, electrochemical detection approaches, and imaging techniques, as well as advanced biochemical, DNA-based identification methods. The result is a unique collection of hard-to-get data that is otherwise only found scattered throughout the literature.
Book Synopsis National Institute of Justice Journal by :
Download or read book National Institute of Justice Journal written by and published by . This book was released on 2003-07 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
