Document Type
Article
Publication Date
Summer 7-1-2011
Abstract
Samples collected from high-risk occupations, or simulations thereof, are analyzed for elemental composition using laser-induced breakdown spectroscopy (LlBS) to determine the occurrence of false positive gunshot residue results generated in the work environment. Previous work involving the study of lifetime of detectable amounts of gunshot residue on the hands of a suspect shooter found that gunshot residue exists up to 5.27 days after a firearm discharge. However, certain environmental and/or occupational false positive tests for gunshot residue could result when sampling non-shooters. Samples collected from occupations or simulations thereof include welding, pyrotechnics, key cutting, mechanics, and paper products all of which produced significant false positive results for gunshot residue.
Journal Title
Journal of Undergraduate Chemistry Research
Journal ISSN
1541-6003
Volume
10
Issue
3
First Page
107
Last Page
110