GC‐MS and GC‐MS/MS in PCI Mode Determination of Mescaline in Peyote Tea and in Biological Matrices
Journal of Forensic Sciences August 17, 2012 Cristiana Gambelunghe, Remo Marsili, Kyriaki Aroni et al. 25 citations
A dark green liquid found in an underage boy's bedroom contained mescaline, the hallucinogen from peyote cactus. Urine tested negative for the drug, but segmental hair analysis detected mescaline in the hair segment closest to the root (0–2 cm), indicating recent use. Distal hair segments were negative. A new gas chromatography–mass spectrometry method was developed to measure mescaline at low concentrations in hair. The case shows that segmental hair analysis can provide long-term information about drug use even when urine is negative.