Non-invasive detection of cocaine dissolved in beverages using displaced Raman spectroscopy |
| |
Authors: | Eliasson C Macleod N A Matousek P |
| |
Institution: | Central Laser Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX, United Kingdom |
| |
Abstract: | 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 ∼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 (∼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. |
| |
Keywords: | Raman Illicit drugs Cocaine Spatially Offset Raman Spectroscopy Non-invasive |
本文献已被 ScienceDirect PubMed 等数据库收录! |