期刊
SPECTROSCOPY LETTERS
卷 43, 期 7-8, 页码 534-538出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00387010.2010.510750
关键词
forensic analysis; GSR; gunshot residue; laser-induced breakdown spectroscopy; LIBS; spectroscopy education
类别
资金
- Department of Chemistry and Biochemistry at Kennesaw State University
- Kennesaw State University-Center for Excellence in Teaching and Learning-Creative Activities and Research Experiences for Teams (KSU-CETL-CARET)
- Ocean Optics, Inc.
The authors developed an experiment for the undergraduate analytical or forensic chemistry laboratory in which gunshot residues (GSRs) produced from toy cap guns are analyzed by laser-induced breakdown spectroscopy (LIBS). Alternatively, the experiment is readily adaptable to any emission spectroscopy technique. This project allows students to investigate the development of a forensic method while addressing proper sampling techniques used in forensic investigations. Students were able to develop a library of blank samples, establish signal detection limits to address legal considerations for determination of false-positive and -negative error rates, and optimize an emission spectrometer.
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