Forensic explosives and firearms traces: Trapping of hplc peaks for gas chromatography
- 1 March 1991
- journal article
- research article
- Published by Taylor & Francis in Journal of Energetic Materials
- Vol. 9 (1-2) , 1-17
- https://doi.org/10.1080/07370659108019857
Abstract
Trace amounts of explosives compounds, separated from cleaned-up extracts of handswabs and clothing debris by high-performance liquid chromatography, may be trapped from the chromatography effluent onto a porous polymer (acrylonitrile or methacrylate copolymer) microcolumn for confirmatory examination by gas chromatography (GC). The microcolumn eluate is injected directly into a GC retention gap of unmodified silica, whereby explosives down to HMX in volatility may be chromatographed. Retention gaps with variously modifiedKeywords
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