The occurrence of cocaine, heroin and me
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Edward J Cone; William D Darwin; Wen-Ling Wang
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Article
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1993
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Elsevier Science
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English
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The analysis of hair for drugs of abuse reveals information regarding past drug exposure. We developed methods for washing, extraction and analysis of hair samples for cocaine, heroin and metabolites. Twenty paired head- and arm-hair samples, collected from known heroin/cocaine abusers, were analyze