מצאתי את זה מתוך מחקר על שיטות בדיקה לגילוי טיאייצסי בשתן: "When smoked, THC rapidly enters the bloodstream in 1-3 minutes whereas taken orally, the absorption is considerably slower (1.5-3 hours)7. Once in the bloodstream, it is quickly transformed by liver enzymes to several metabolites, the foremost being 1,1-nor-)9-THC-9-carboxylic acid8. In humans, two-thirds of the dose is excreted in the feces and a third in the urine, almost entirely as metabolite9. THC itself is detectable for a few hours in blood, but because of its rapid metabolism and distribution, little unchanged THC appears in the urine." http://thunder1.cudenver.edu/clas/sasl/Techniques/Tox/ria_cannabinoids.pdf מאמר קצר שמצאתי, משנת 72 אבל אני חושב שהוא רלוונטי לשאלה שלך. http://www.druglibrary.org/schaffer/LIBRARY/studies/ledain/ldc2d.htm תודה לטל. |