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Studies on Different Hydrolysis Procedures for Drugs of Abuse in Hair
Authors:Chen MA and Tong Hut ZHOU
Affiliation:Institute of Materia Medical Chinese Academy of Medical Sciences and Peking Union Medical College. Beijing 100050
Abstract:Different hydrolysis and extraction procedures have been studied for the determinationof drugs of abuse in hair samples. The results showed that acid and enzymatic hydrolysis gave high extraction recoveries for 6-monoacetylmorphine. morphine. codeine and heroin. Enzymatic hydrolysis was more expensive. After alkaline hydrolysis. 6-monoacetylmorphine. a unique proofof heroin abuse. could not be detected and after methanolic extraction. the extract was dirty and the obtained chromatogram showed an interfering background. It is concluded that acid hydrolysis is the extraction method of choice.
Keywords:Drugs of abuse   hydrolysis   hair
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