Journal
ANALYTICA CHIMICA ACTA
Volume 607, Issue 1, Pages 50-53Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2007.11.023
Keywords
Raman; illicit drugs; cocaine; spatially offset Raman; spectroscopy; non-invasive
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We demonstrate the potential of Raman spectroscopy to detect cocaine concealed inside transparent glass bottles containing alcoholic beverages. A clear Raman signature of cocaine with good signal-to-noise was obtained from a similar to 300 g solution of adulterated cocaine (purity 75%) in a 0.7 L authentic brown bottle of rum with 1 s acquisition time. The detection limit was estimated to be of the order of 9 g of pure cocaine per 0.7 L (similar to 0.04 moles L-1) with 1 s acquisition time. The technique holds great promise for the fast, non-invasive, detection of concealed illicit compounds inside beverages using portable Raman instruments, thus permitting drug trafficking to be combated more effectively Crown Copyright (c) 2007 Published by Elsevier B.V. All rights reserved.
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