Quantitation of cannabinoids in biological specimens using probability based matching GC/MS.
The results from these urine studies and a few other isolated extracts we have run may be generalized as follows: The hexane fractions showed low levels of delta9-THC (ca. 10 ng/ml) with marginal Confidence Indices (25-30), but both the quantities and the K-scores  were well above the values seen in extracts of control urines; the hexane fractions showed similar levels of CBN (ca. 12-25 ng/ml) with significant K-scores (60-80); the ether-extractable neutral fraction contained 8alpha, 11-dihydroxy-delta9-THC (25-150 ng/ml) with low conficdence and sometimes a suggestion of 8beta-hydroxy-delta9-THC (15 ng/ml) with a marginal identification; and the E-II fraction (ether-extractable, weak acids) usually contained a strong indication (CONF 60-95) of delta9-THC-11-oic acid (100-200 ng/ml.
D000818:Animals; D002188:Cannabis / Q000032:analysis*; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D013759:Dronabinol / Q000032:analysis; D005243:Feces / Q000032:analysis; D000882:Haplorhini; D006801:Humans; D013058:Mass Spectrometry; D008722:Methods; D010215:Papio; D013997:Time Factors
D013759:Dronabinol