Urinary cannabinoid analysis: comparison of four immunoassays with gas chromatography-mass spectrometry.
Eight-eight urine samples were analysed by the EMIT d.a.u. Cannabinoid 20 ng homogeneous enzyme immunoassay, the DPC cannabinoid radioimmunoassay, two in-house cannabinoid radioimmunoassays and a gas chromatography-mass spectrometry method for 11-nor-9-carboxy-delta 9-tetrahydrocannabinol. There was good qualitative agreement between the methods with few discrepancies in the borderline region.
Metropolitan Police Forensic Science Laboratory, London, U.K.
D
D
Altunkaya
A J
AJ
Clatworthy
R N
RN
Smith
I J
IJ
Start
D002186:Cannabinoids / Q000652:urine*; D005188:False Negative Reactions; D005189:False Positive Reactions; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D007124:Immunoenzyme Techniques; D011237:Predictive Value of Tests; D011863:Radioimmunoassay
D002186:Cannabinoids