The major metabolite is tetrahydrocannabinol carboxylic acid (THC-COOH).. *
elimination of marijuana from the human body. Conventional wisdom has led to the common assumption that cannabinoids will remain detectable in urine for 30
Detection rates, detection times, and sensitivities, specificities, and efficiencies. Ingestion of these products may produce positive urine drug tests (13)(15).. . Solid-phase extraction and GC-MS analysis of THC-COOH method optimized for
Detection Times of Marijuana Metabolites in Urine by Immunoassay and GC-MS. . For this reason THC-COOH is usually considered, possibly together with .
Detection times and other excretion parameters were determined. Several. the 11-nor-Ag-THC -. COOH standard, and 11-nor-A8-THCCOOH was the internal. cannabis positives out of 17,000-20,000 urine specimens). The samples were .
for consecutive positive urine specimens and a detection time for the last positive urine specimen (Figure 3). Mean THC-. COOH detection times for the last .