ISSN: 0022-1198
CODEN: JFSCA
Page Count: 7

Determination of Barium in Gunshot Residue Collection Swabs Using Inductively Coupled Plasma-Atomic Emission Spectrometry
Peters, CA
Special agent and chemist, Gunshot Residue and Metals Analysis Unit, FBI Laboratory, DC

Havekost, DG
Special agent and chemist, Gunshot Residue and Metals Analysis Unit, FBI Laboratory, DC

Koons, RD
Research chemist, Forensic Science Research Unit, FBI Laboratory, FBI Academy, VA

(Received 28 March 1987; accepted 20 May 1987)

Abstract

Inductively coupled plasma-atomic emission spectrometry (ICP-AES) was compared with atomic absorption spectrophotometry (AAS) for barium determination in gunshot residue (GSR) collection swabs. Lack of interferences by common swab extract constituents, a wide linear dynamic range, and good precision and accuracy of ICP-AES make it superior to AAS for barium determination in GSR swab extracts.

Keywords:
forensic science, ballistics, gunshot residues, atomic absorption spectrophotometry, firearms discharge, barium determination, inductively coupled plasma-atomic emission spectrometry

Paper ID: JFS12434J
DOI: 10.1520/JFS12434J
ASTM International is a member of CrossRef.