Open AccessDetection of Δ9-tetrahydrocannabinol (THC) in hair using GC–MS
Author(s) -
Himanshu Khajuria,
Biswa Prakash Nayak
Publication year - 2014
Publication title -
egyptian journal of forensic sciences/egyptian journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.238
H-Index - 18
eISSN - 2090-5939
pISSN - 2090-536X
DOI - 10.1016/j.ejfs.2013.10.001
Subject(s) - chromatography , gas chromatography–mass spectrometry , cannabis , hair analysis , chemistry , tetrahydrocannabinol , δ9 tetrahydrocannabinol , forensic toxicology , cannabinoid , medicine , mass spectrometry , biochemistry , alternative medicine , receptor , pathology , psychiatry
Detection of drugs from hair samples has become an imperative technique in forensic toxicological analysis. In this study, hair samples were collected from 20 cannabis users undergoing treatment at a rehabilitation center at different time intervals. Hair samples were cleaned and digested, followed by extraction and quantification of THC by GC–MS. At LOD of 0.1 ng/mg of THC, the concentration ranged from 0.16 to 2.3 ng/mg (mean, 0.95 ng/mg). Results indicate that THC is detectable after 3 months of last drug intake