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- W1995996675 abstract "In this work the study of the disappearance of cocaine in hair is reported. The subject of the study is a woman who stopped the consumption of cocaine after a period of drug abuse of over 1 year. Hair samples were collected over a period of 10 months. During this time the absence of cocaine intake was monitored by the toxicological analysis of urine, performed every 2 days. After decontamination with methanol, the hair sample, cut in two segments (0-1.5 and 1.5-3 cm from the hair root) was added with cocaine-D(3) (internal standard), hydrolyzed and extracted with chloroform/isopropanol (9:1). The extract was evaporated to dryness, reconstituted in 25 microl of ethyl acetate and analyzed by GC-MS in SIM mode. The obtained results show that the incorporation of cocaine in hair decreased during the first 3 months after the last consumption and after this period of time no cocaine was found in the hair sections closest to the root." @default.
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- W1995996675 date "2005-11-01" @default.
- W1995996675 modified "2023-10-03" @default.
- W1995996675 title "Disappearance of cocaine from human hair after abstinence" @default.
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- W1995996675 doi "https://doi.org/10.1016/j.forsciint.2004.09.113" @default.
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