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Analysis Of Gunshot Primer Residue Collection Swabs By Inductively Coupled Plasma Mass Spectrometry
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Book Synopsis Analysis of Gunshot Primer Residue Collection Swabs by Inductively Coupled Plasma-Mass Spectrometry by : RD. Koons
Download or read book Analysis of Gunshot Primer Residue Collection Swabs by Inductively Coupled Plasma-Mass Spectrometry written by RD. Koons and published by . This book was released on 1998 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concentrations of antimony, barium, and lead in gunshot residue collection swab extract solutions were determined using inductively coupled plasma-mass spectrometry. Analytical advantages of inductively coupled plasma-mass spectrometry are a lack of interferences by swab extract constituents, low detection limits, wide linear dynamic ranges, short analysis times, and good precision and accuracy. This procedure is applicable to both hand blank and shooter-associated levels of antimony, barium, and lead in gunshot residue swab extracts.
Book Synopsis Analysis of Gunshot Primer Residue Collection Swabs Using Flameless Atomic Absorption Spectrophotometry and Inductively Coupled Plasma-Atomic Emission Spectrometry by : RD. Koons
Download or read book Analysis of Gunshot Primer Residue Collection Swabs Using Flameless Atomic Absorption Spectrophotometry and Inductively Coupled Plasma-Atomic Emission Spectrometry written by RD. Koons and published by . This book was released on 1989 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two modifications to a previously reported extraction procedure for determination of antimony, barium, and lead in gunshot primer residue swab extract solutions have been studied. Removal of cotton tips from swabs by cutting their shafts results in extraction efficiencies for all elements that compare favorably with those obtained by complete removal of the cotton from the swab shaft. Swab-mounted standards can be made and stored in a dry condition for periods of at least four months before use without adverse effects on analytical results. Long-term relative precision estimates for the combined extraction and analysis are approximately 5% for all three elements.
Book Synopsis Current Methods in Forensic Gunshot Residue Analysis by : A. J. Schwoeble
Download or read book Current Methods in Forensic Gunshot Residue Analysis written by A. J. Schwoeble and published by CRC Press. This book was released on 2000-06-27 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the improvements in collection methods and analytical tools that allow more thorough analyses, gunshot residue examination has made a dramatic impact as an area of trace evidence essential to the investigation and prosecution of violent crime. Current Methods in Forensic Gunshot Residue Analysis deals with major areas of gunshot residue analysis, including current and future methods of analysis, collection techniques, interpretation of evidence, expert testimony and report writing. This text is a necessity for forensic scientists conducting this type of analysis and anyone involved in the investigation and prosecution of violent crimes involving firearms.
Download or read book Review of written by WF. Rowe and published by . This book was released on 2001 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the methods currently used for the analysis of gunshot residue, with particular emphasis on variable pressure SEM/EDS analysis of primer residues. The chapters consider in turn: (1) gunshot residue as forensic evidence (including the loss or transfer of gunshot residue and its collection at the scene of the crime), (2) the formation and composition of primer residue particles, (3) methods of gunshot residue analysis (concentrating on the aforementioned variable pressure SEM/EDS but also outlining graphite furnace atomic absorption spectrophotometry, neutron activation analysis, inductively coupled plasma-mass spectrometry and capillary electrophoresis), (4) gunshot residue plumes produced by a variety of firearms (presenting video captures from the highspeed video studies conducted by RJ Group, Inc., in 1994), (5) the results of SEM/EDS analyses of a number of samples of gunsot residue produced by various handguns firing a variety of brands of ammunition, and finally (6) the proper documentation of test results and the presentation of testimony. The book concludes with a glossary of ballistic terms and a comprehensive bibliography of articles relating to the analysis of gunshot residue.
Book Synopsis Differentiation of Bullet Type Based on Analysis of Gunshot Residue Using Inductively Coupled Plasma Mass Spectrometry by : Ruth Norma Udey
Download or read book Differentiation of Bullet Type Based on Analysis of Gunshot Residue Using Inductively Coupled Plasma Mass Spectrometry written by Ruth Norma Udey and published by . This book was released on 2010 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Gunshot Primer Residue Collection Swabs Using Flameless Atomic Absorption Spectrophotometry by : RD. Koons
Download or read book Analysis of Gunshot Primer Residue Collection Swabs Using Flameless Atomic Absorption Spectrophotometry written by RD. Koons and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods of extraction of gunshot residue (GSR) swabs for determination of antimony (Sb), barium (Ba), and lead (Pb) by flameless atomic absorption spectrophotometry (AAS) have been studied. Optimum extraction parameters were determined using recovery studies of Sb, Ba, and Pb added to swabs at amounts representative of actual GSR and handblank levels. Two difficulties with most extraction-AAS procedures are incomplete extraction of Sb and incorrect Ba results arising from improper matching of sample and standard matrices before AAS determinations. Utilization of standards made by spiking analyte elements on swabs and extraction along with samples by an efficient procedure minimizes errors in Sb, Ba, and Pb determination.
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 A New Method for Collection and Identification of Gunshot Residues from the Hands of Shooters by : ELT. Reis
Download or read book A New Method for Collection and Identification of Gunshot Residues from the Hands of Shooters written by ELT. Reis and published by . This book was released on 2006 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a novel collection method for gunshot residues (GSR) using a sampling procedure based on ethylenediaminetetraacetic acid (EDTA) solution as a complexing agent on moistened swabs. Detection was via a sector-field inductively coupled plasma mass spectrometry (HRICP-MS) The proposed collection and analytical method allowed detection of antimony (Sb), barium (Ba) and lead (Pb) after.38 shot tests, at detection limits of less than 1 μg L-1 in four different areas of the hands of volunteers. This paper includes a discussion concerning hand areas near the thumb and forefinger as being more suitable for GSR collection as well as a comparison between differences observed using 2% diluted EDTA, 2% nitric acid solution, and simple deionized water as collecting solutions, proving the superior efficiency of EDTA in GSR recoveries.
Book Synopsis Advances in Analytical Techniques for Forensic Investigation by : Priyanka Chhabra
Download or read book Advances in Analytical Techniques for Forensic Investigation written by Priyanka Chhabra and published by John Wiley & Sons. This book was released on 2024-08-06 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is essential for anyone seeking to understand and apply the latest analytical techniques in forensic investigation, saving time, materials, energy, and manpower by providing guidance on the most appropriate techniques for different types of investigations. Advances in Analytical Techniques for Forensic Investigation is aimed to describe the applicability of different types of analytical techniques used for the forensic investigation, including FT-IR, chromatography, mass spectroscopy, NMR spectroscopy, atomic absorption spectroscopy, UV- vis spectroscopy, etc. This book will focus on current and emerging developments in the latest analytical techniques and methods used in the forensic investigation and sample analysis of various physical, chemical, and biological samples in order to facilitate the smooth conduction of justice.
Book Synopsis Forensic Analytical Techniques by : Barbara H. Stuart
Download or read book Forensic Analytical Techniques written by Barbara H. Stuart and published by John Wiley & Sons. This book was released on 2012-12-14 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book will be an open learning / distance learning text in the Analytical Techniques for the Sciences (AnTS) covering analytical techniques used in forensic science. No prior knowledge of the analytical techniques will be required by the reader. An introductory chapter will provide an overview of the science of the materials used as forensic evidence. Each of the following chapters will describe the techniques used in forensic analysis. The theory, instrumentation and sampling techniques will be explained and examples of the application of each technique to particular forensic samples will be provided. The reader will be able to assess their understanding with the use of regular self assessment questions and discussion questions throughout the book. The user of the book will be able to apply their understanding to the application of specific techniques to particular analyses encountered in their professional life.
Book Synopsis Handbook of Firearms and Ballistics by : Brian J. Heard
Download or read book Handbook of Firearms and Ballistics written by Brian J. Heard and published by John Wiley & Sons. This book was released on 2011-08-17 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The updated second edition of Handbook of Firearms and Ballistics includes recent developed analytical techniques and methodologies with a more comprehensive glossary, additional material, and new case studies. With a new chapter on the determination of bullet caliber via x-ray photography, this edition includes revised material on muzzle attachments, proof marks, non-toxic bullets, and gunshot residues. Essential reading for forensic scientists, firearms examiners, defense and prosecution practitioners, the judiciary, and police force, this book is also a helpful reference guide for undergraduate and graduate forensic science students.
Book Synopsis Scanning Electron Microscopy and X-Ray Microanalysis by : Joseph Goldstein
Download or read book Scanning Electron Microscopy and X-Ray Microanalysis written by Joseph Goldstein and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has evolved by processes of selection and expansion from its predecessor, Practical Scanning Electron Microscopy (PSEM), published by Plenum Press in 1975. The interaction of the authors with students at the Short Course on Scanning Electron Microscopy and X-Ray Microanalysis held annually at Lehigh University has helped greatly in developing this textbook. The material has been chosen to provide a student with a general introduction to the techniques of scanning electron microscopy and x-ray microanalysis suitable for application in such fields as biology, geology, solid state physics, and materials science. Following the format of PSEM, this book gives the student a basic knowledge of (1) the user-controlled functions of the electron optics of the scanning electron microscope and electron microprobe, (2) the characteristics of electron-beam-sample inter actions, (3) image formation and interpretation, (4) x-ray spectrometry, and (5) quantitative x-ray microanalysis. Each of these topics has been updated and in most cases expanded over the material presented in PSEM in order to give the reader sufficient coverage to understand these topics and apply the information in the laboratory. Throughout the text, we have attempted to emphasize practical aspects of the techniques, describing those instru ment parameters which the microscopist can and must manipulate to obtain optimum information from the specimen. Certain areas in particular have been expanded in response to their increasing importance in the SEM field. Thus energy-dispersive x-ray spectrometry, which has undergone a tremendous surge in growth, is treated in substantial detail.
Book Synopsis The Persistence of Gunshot Residue in Decomposing Tissue and Blowfly Larvae by : Lisa Marie LaGoo
Download or read book The Persistence of Gunshot Residue in Decomposing Tissue and Blowfly Larvae written by Lisa Marie LaGoo and published by . This book was released on 2008 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Persistence of Gunshot Residue on Decomposing Tissue by : Luther Sterling Schaeffer
Download or read book The Persistence of Gunshot Residue on Decomposing Tissue written by Luther Sterling Schaeffer and published by . This book was released on 2007 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Analysis of Firearms, Ammunition, and Gunshot Residue by : James Smyth Wallace
Download or read book Chemical Analysis of Firearms, Ammunition, and Gunshot Residue written by James Smyth Wallace and published by CRC Press. This book was released on 2008-06-04 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Firearms and their associated ammunition, spent bullets, and spent cartridge cases provide useful information for identifying suspects, terrorist groups, and the criminal history of a weapon. Unfortunately, despite the numerous detailed books on the physical aspects of firearms, very little has been published on the chemical aspects, and what has b
Book Synopsis The Application of Oxygen Plasma Ashing to Gunshot Residue Analysis by : WD. Kinard
Download or read book The Application of Oxygen Plasma Ashing to Gunshot Residue Analysis written by WD. Kinard and published by . This book was released on 1978 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the analysis of hand samples for barium and antimony levels indicative of gunshot residue, severe problems are encountered with swabs contaminated by blood, dirt, or grease. These problems originate from two main sources: decreased effectiveness of sample leaching and high instrumental backgrounds. When the flameless atomic absorption spectroscopy (FAAS) method developed in our laboratory [1] is used, the choice of sample collection materials is restricted to those that can be easily separated from the elements of interest. In our approach, a sample such as a cotton swab is leached with dilute nitric acid to extract any residues present. Surface contamination may make the swab impervious to solvent penetration and, therefore, inefficient leaching occurs. Contaminants such as blood, dirt, or grease on the sample can coat any primer residue particles present and prevent their dissolution in the acid, resulting in the amount of the elements of interest being lower in the solution than expected. The measured level of these elements will thus be lower than that actually present in the sample. Increasing the contact time between solvent and sample, or rigorous agitation to improve solvent attack, usually results in enhancement of the background response during the atomization phase of the AA analysis with no improvement in analytical results. This enhanced background, especially notable at the 217.6- and 217.9-nm (2176- and 2179-Å) lines used for antimony detection, may be attributed to light scattering by organic materials not completely destroyed during the drying and ashing cycle of the AA determination. Destruction of the matrix by ashing of the samples prior to analysis significantly decreases the analytical background and eliminates leaching difficulties.
Book Synopsis Physical Evidence in Forensic Science by : Henry C. Lee
Download or read book Physical Evidence in Forensic Science written by Henry C. Lee and published by Lawyers and Judges Publishing. This book was released on 2000 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the classic by America's leading forensic scientists gives you an insider's understanding of physical evidence at the crime scene. Written in an easy-to-understand format, this outstanding guide by the nation's foremost forensic scientists introduces you to the basics of crime scene evaluation. This extensive resource is packed with valuable information about the details of collecting, storing, and analyzing all types of physical evidence. You'll learn how to connect the victim(s) and suspect(s) to the crime scene, and to the physical evidence left behind. The book also teaches you how to use this information to provide convincing testimony based on scientific facts. Discover if the police and prosecution have done their jobs properly when processing all crime scene materials. Part I offers an overview of forensic science and discusses the future path of forensic science and its applications in the courtroom and society. Part II gives you an exhaustive list of physical evidence typically left behind at crime scenes and explains the correct methods for processing this evidence. Part III discusses current issues in search and seizure, and how to effectively utilize it in court. The appendices discuss common blood screening test reagents and how to use the druggist's fold for sealing evidence in paper.Details often make the difference between winning and losing that important case. This in-depth reference also provides a wealth of details regarding: light and smoke at the crime scene, bullet identification, the difference between transient and pattern evidence, noting post-mortem lividity marks and other special imprints and indentations, how odors offer clues to the crime, studying dry versus wet blood samples, how to reconstruct a crime scene, and most importantly how to recognize and co-ordinate all the elements of the crime scene. Written by the foremost experts in the field of forensic science, you will learn from the best how to make your investigation solid and successful. Topics include: Physical evidence and forensic science Introduction to forensic science Arson Bite marks Blood and Body fluids Bombs and explosives Computers and electronic data as evidence Chemical substances Crime scene reconstruction DNA analyses Documents Drugs and controlled substances Firearms Fibers Fingerprints Glass Gunshot residue Hair Imprint and impression evidence Fingerprints Paints Pattern evidence Plastics Sexual assault and sex crime evidence Soil Tape Toolmarks Video evidence Voice identification Legal aspects of forensic science Some screening test reagents The druggist's fold
