Identification of a Suspicious Drug by Using Spectroscopic Techniques: A Forensic Analytical Chemistry Project
作者:Huggins Z. Msimanga、Gregory P. Everhart
DOI:10.1080/00387010.2011.585433
日期:2012.4.1
We identified a drug analog by using screening and confirmatory tests. Total ion chromatogram showed a major peak with a molecular ion of 190 m/z, but no mass spectrum match from the NIST library. A minor peak was identified as 1-benzylpiperazine (molecular ion 176 m/z). Molecular ions of both peaks differed by 14 m/z units, suggesting a -CH2 - group. Both peaks had the same base peak of 91 m/z. Derivatizing the drug analog with trifluoroacetic anhydride confirmed the presence of 1-benzylpiperazine. No reaction occurred with the major peak. We proposed a benzyl-4-methylpiperazine structure, which was confirmed by NMR studies.