thirty human urines screened positive by the syva enzyme multiple immunoassay technique ( emit ) d.a.u . urine cannabinoid assay were also positive for the major marijuana urinary metabolite 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid ( thc-cooh ) when assayed by gas chromatographic/mass spectrometric ( gc/ms ) and a noninstrumental qualitative bonded-phase adsorption/thin-layer chromatographic ( bpa-tlc ) technique .
C0006864
cannabinoid
C0039663
thc