Study of trace impurities in heroin by neutron activation analysis |
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| Authors: | Z Y Zhang J H Yang H Ouyang Z J Li Z F Chai J Zhu J Z Zhao Z S Yu J Wang |
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| Institution: | (1) Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, The Chinese Academy of Sciences, P.O. Box 918, Beijing, 100039, P.R. China;(2) Institute of Forensic Science, The Ministry of Public Security Beijing, 100038, P.R. China |
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| Abstract: | Sixty-two heroin samples were analyzed for their contents of 15 trace elements (Au, Ba, Br, Ca, Ce, Co, Cr, Fe, La, Na, Sb,
Sc, Sm, Th, and Zn) by neutron activation analysis (NAA). Large variations of elemental concentrations between samples were
found to possess statistical significance. Of all the elements calcium was the most abundant element, followed by zinc and
sodium. The concentrations of Au, Ce, Co, La, Sb, Sc, Sm, and Th in all the samples were below 1 mg·g−1. Classification of these heroin samples was achieved by the application of hierarchical cluster analysis. The results show
that NAA can provide useful information on the origin of the illicit drugs.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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