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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 ∼300g solution of adulterated cocaine (purity 75%) in a 0.7L authentic brown bottle of rum with 1s acquisition time. The detection limit was estimated to be of the order of 9g...
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