Cocaine is detectable in urine as soon as 4 hours after first usage
As soon as it enters your blood stream. Depending on the route of ingestion, that could be instantaneously.
Many factors weigh in detecting the cocaine in urine. When you screen urine for the cocaine,you are actually measuring benzoylecgonine, which is a metabolite of cocaine. Generally, the accepted...
separate the hydrogen and oxygen
vinegar