Carboxy-THC in Washed Hair: Still the Reliable Indicator of Marijuana Ingestion | Zendy

Virginia Hill | Zendy; Michael Schäffer | Zendy; G. Neil Stowe | Zendy

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Carboxy-THC in Washed Hair: Still the Reliable Indicator of Marijuana Ingestion

Author(s) -

Virginia Hill,

Michael Schäffer,

G. Neil Stowe

Publication year - 2016

Publication title -

journal of analytical toxicology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.161

H-Index - 76

eISSN - 1945-2403

pISSN - 0146-4760

DOI - 10.1093/jat/bkw031

Subject(s) - ingestion , delta 9 tetrahydrocannabinol , chemistry , contamination , metabolite , tetrahydrocannabinol , smoke , dronabinol , chromatography , hair analysis , environmental chemistry , cannabinoid , biology , medicine , biochemistry , organic chemistry , ecology , receptor , alternative medicine , pathology

The presence of the metabolite 11-nor-9-carboxy-delta-9-tetrahydrocannabinol (C-THC) in hair is generally accepted as the definitive proof of delta-9-tetrahydrocannabinol (THC) ingestion. During hair analysis, the removal of any potential C-THC external contamination that could result from marijuana smoke or close personal contact via a wash procedure is critical. Here, we performed a series of experiments to demonstrate that C-THC is the reliable indicator of marijuana ingestion when paired with the correct washing procedure to remove potential external contamination.

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