• Login
    View Item 
    •   UMB Digital Archive
    • School, Graduate
    • Theses and Dissertations All Schools
    • View Item
    •   UMB Digital Archive
    • School, Graduate
    • Theses and Dissertations All Schools
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UMB Digital ArchiveCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    Display statistics

    The Development of a Gas Chromatography/Mass Spectrometry (GC/MS) Method for the Separation and Identification of Components of Organic Gunshot Residue and Its Use as a Forensic Tool for Association of Firearms Related Evidence

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    TobinJr_umaryland_0373D_10264.pdf
    Size:
    3.043Mb
    Format:
    PDF
    Download
    Author
    Tobin, John Joseph, Jr.
    Advisor
    LaCourse, William R., 1957-
    Squibb, Katherine S.
    Date
    2012
    Type
    dissertation
    
    Metadata
    Show full item record
    Abstract
    The use of methods that are not only scientifically sound but also conform to the precepts of the Frye and Daubert legal standards is paramount in the forensic science disciplines. This research develops a method of analysis that can be used by the smaller forensic crime laboratory in the analysis of evidence associated with smokeless powder composition and its organic gunshot residue (OGSR). The method specifically focuses on the separation and identification of the organic additives of the propellant mixture found in handgun ammunitions and their discharge products via gas chromatography/mass spectrometry (GC/MS) using the SIM Mode. The specific ammunition used in this research is Federal Classic 9 mm Luger, 115 gr Hi-Shok. The developed method addresses the following forensic concerns: 1. The identification of organic additive components of smokeless powder that have been removed from the hands of the shooter and compared with the residues remaining in the spent cartridge casings that may be found at a crime scene as well as the components of the unburned propellant. 2. The method demonstrates the use of a proprietary solvent that enhances the collection of the OGSR residues. 3. The method defines the criteria that can be used to determine if the composite analysis of the residue is indicative of the discharge of a firearm. 4. The method studies the longevity/stability of the residues post-discharge and the changes compositional profile, if any. The use of this method in conjunction with the analysis of the inorganic particulate matter will enhance the overall ability of forensic laboratories to identify gunshot residue discharges.
    Description
    University of Maryland, Baltimore. Forensic Toxicology. Ph.D. 2012
    Keyword
    association
    evidence
    forensic
    OGSR profile
    Gunshot residues
    Chromatography, Gas
    Firearms
    Forensic Sciences
    Mass Spectrometry
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/1654
    Collections
    Theses and Dissertations All Schools
    Theses and Dissertations School of Medicine

    entitlement

     
    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Policies | Contact Us | UMB Health Sciences & Human Services Library
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.