https://www.selleckchem.com/pr....oducts/beta-glycerop
Benzoylecgonine and ecgonine methyl ester were identified for 70 hours and for 60 hours, respectively, with concentrations ranging from 6 to 3730 ng/mL and from 6 to 1738 ng/mL. The concentration profiles were identical for the five volunteers. This study supports the athlete's claims. In addition, the hair of the five subjects was collected a month later and all the hair tests were negative for cocaine using a limit of decision at 10 pg/mg. Although it is accepted that a 4 mg dose of cocaine has no sig
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