Cocaine is a common drug of abuse. To detect its use, a screening detection concentration for the cocaine metabolite benzoylecgonine is commonly set at 150 ...
Peak urine cocaine concentrations of 300 to 24,000 ng/mL were reached in less than 1 h. Peak urine benzoylecgonine (BE) concentrations ranged from 8100 to ...
Urinary excretion of ecgonine (EC) was compared to that of cocaine, benzoylecgonine, ecgonine methyl ester and minor metabolites, ...
Cocaine is detected in urine by identification of benzoylecgonine, an inactive metabolite of cocaine. In contrast to amphetamine immunoassays, which are ...
Cocaine is a highly abused drug that is most frequently detected in the urine as the metabolite benzoylecgonine and usually as part of a multiclass drug profile.
Apr 15, 2019 ... When a person consumes cocaine, the liver primarily converts it to the metabolites benzoylecgonine and ecgonine methyl ester.
Abstract. Two methods of drug detection, urinalysis and hair analysis, were compared with respect to the efficiency of identification of drug use in a populati.
Benzoylecgonine, on the other hand, stays in the system much longer and can be ... 5 to 7 days for traces of cocaine metabolites to start accumulating in the hair.
acute low-dose cocaine studies. Here we report urinary excretion patterns of cocaine metabolites as benzoylecgonine (BE) equivalents from 18 of the same ...
Nov 22, 2017 ... Benzoylecgonine is known as cocaine's main metabolite. Benzoylecgonine remains in your urine for longer periods than other metabolites ...