
Cannabinoids and metabolites in expectorated oral fluid following controlled smoked cannabis
Keywords: OF, oral fluid; DUID, driving under the influence of drugs; CBD, cannabidiol; CBN, cannabinol; 2D-GCMS, 2-dimensional gas chromatography mass spectrometry; BSTFA, N,O-bis(trimethylsilyl)trifluoroacetamide; TFAA, trifluoroacetic anhydride; HFIP, hexafluoro