@article{ref1, title="Firearms discharge residue sample collection techniques", journal="Journal of forensic sciences", year="1975", author="Goleb, J. A. and Midkiff, C. R.", volume="20", number="4", pages="701-707", abstract="Critical comparisons of Ba and Sb in firearms discharge residue were made on samples collected by three independent collection technqiues. Collection materials studied were transparent adhesive tape, (Scotch Brand), a solution of cellulose acetate in acetone ("Film Lift"), and plastic-shafted cotton swabs wetted with dilute nitric acid. Flameless atomic absorption analyses were performed with a Jarrell-Ash Model 810 instrument equipped with a tantalum strip atomizer. Tape and cotton swabs gave comparable positive indications of residue, with frequencies of 90 and 80%, respectively. The plastic Film Lift gave fewer positives, with a frequency of 50%. With the transparent tape lift, gunshot residue particles are discernible, making nondestructive microscopic identification possible prior to destructive elemental analysis.

Language: en

", language="en", issn="0022-1198", doi="", url="http://dx.doi.org/" }