RAPID NEUTRON ACTIVATION ANALYSIS FOR GUNSHOT RESIDUE DETERMINATION

• NCJ Number: 11680
• Journal: Journal of Forensic Sciences Volume: 18 Issue: 3 Dated: (JULY 1973) Pages: 226-231
• Author(s): R C MCFARLAND; M E MCLAIN
• Date Published: 1973
• Length: 6 pages
• Corporate Author: American Soc for Testing and Materials
• Publication Format: Article
• Language: English
• Country: United States of America

Annotation

IMPROVED CARRIER YIELD MEASUREMENT METHOD FOR USE IN BARIUM AND ANTIMONY DETERMINATIONS ON RESIDUES REMOVED FROM THE HANDS OF INDIVIDUALS SUSPECTED OF FIREARMS USE.

Abstract

THIS RADIOMETRIC YIELD DETERMINATION TECHNIQUE IS BASED ON THE INCORPORATION OF BARIUM AND ANTIMONY ISOTOPES AS RADIOACTIVE TRACERS INTO THE BARIUM AND ANTIMONY CARRIERS. THE RADIOMETRIC METHOD OF CHEMICAL YIELD DETERMINATIONS IN THE POST-IRRADIATION RADIO-CHEMICAL PROCESSING OF GUNSHOT RESIDUE SAMPLES GIVES COMPARABLE VALUES FOR THE CHEMICAL SEPARATIONS YIELDS FOR BARIUM AND ANTIMONY. THE TIME REQUIRED FOR THE SEPARATIONS IS REDUCED FROM THE FORMER 90 MINUTES TO LESS THAN 30 MINUTES IN THE CASE OF THE BARIUM DETERMINATION. (AUTHOR ABSTRACT MODIFIED)