METHOD FOR THE IDENTIFICATION OF SMOKELESS POWDERS AND THEIR RESIDUES BY THIN-LAYER CHROMATOGRAPHY OF THEIR MINOR CONSTITUENTS

• NCJ Number: 11982
• Journal: Journal of the Forensic Science Society Volume: 13 Issue: 3 Dated: (JULY 1973) Pages: 199-201
• Author(s): J L BOOKER
• Date Published: 1973
• Length: 3 pages
• Corporate Author: American Soc for Testing and Materials
• Publication Format: Article
• Language: English
• Country: United States of America

Annotation

SEPARATION AND VISUALIZATION PROCEDURES FOR DETECTING THE CHEMICAL ADULTERANTS NECESSARY TO INHIBIT FREE RADICAL REACTIONS IN NITROCELLULOSE, AND THEIR REACTION PRODUCTS.

Abstract

THE MINOR COMPONENTS, SUCH AS DIPHENYLAMINE, ARE LEACHED FROM POWDER GRANULES AND RESIDUES WITH DICHLOROMETHANE, THEN SEPARATED ON A SILICA GEL THIN LAYER CHROMATOGRAPHY PLATE AND VISUALIZED. QUALITATIVE ANALYSIS IS SUFFICIENT IN MOST CASES FOR COMPARISON OF TWO POWDERS, BUT, IN THOSE INSTANCES OF SIMILARITY, A ROUGH QUANTITATIVE ANALYSIS EXTENDS THE IDENTIFICATION. IT WAS DETERMINED THAT NO EVIDENCE WAS DAMAGED BY WASHING ARTIFACTS WITH DICHLOROMETHANE. (AUTHOR ABSTRACT)