Twibell J D, Home J M, Smalldon K W, Higgs D G, Hayes T S
J Forensic Sci. 1982 Oct;27(4):792-800.
Eight solvents were compared for their relative efficiency in removing nitroglycerine from the hands of persons handling explosives. The amount of interfering material also removed from the hands by the cotton swabs and the stability of the nitroglycerine in the solvent used were also investigated. Aqueous solvents yielded the best recoveries, when the extracts were partially purified by thin-layer chromatography before analysis, but the explosive was degraded rapidly by microorganisms that grew in the solutions. Of the aqueous, organic, and polar solvents tested, ethanol was found to offer the most complete, consistent, and stable recovery.
比较了八种溶剂从接触炸药人员手中去除硝酸甘油的相对效率。还研究了棉签从手中去除的干扰物质的量以及所用溶剂中硝酸甘油的稳定性。当提取物在分析前通过薄层色谱法进行部分纯化时,水性溶剂的回收率最佳,但炸药会被溶液中生长的微生物迅速降解。在所测试的水性、有机和极性溶剂中,发现乙醇能提供最完整、一致和稳定的回收率。