Fig. 1From: Detection of 6-monoacetylemorphine in hair sample of heroin addicts using gas chromatography–mass spectrometry and significance of rehabilitation programSample analysis taken from regular random addicts’ group. a Mass spectrum of the regular addict sample. b Fragmentation pathway observed in regular addicts’ sample. The key ions detected in this spectrum were of 6-monoacetylmorphine and morphine forming peaks at (m/z) 327 and 286, respectivelyBack to article page