title: Optimization of extraction and separation of narcotics from urine.
mesh_terms: D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D003042:Cocaine / Q000652:urine; D003061:Codeine / Q000652:urine; D004155:Diphenhydramine / Q000652:urine; D005069:Evaluation Studies as Topic; D005959:Glucosidases; D006801:Humans; D007202:Indicators and Reagents; D008614:Meperidine / Q000652:urine; D008691:Methadone / Q000652:urine; D008702:Methaqualone / Q000652:urine; D008722:Methods; D009020:Morphine / Q000652:urine; D009269:Nalorphine / Q000652:urine; D009294:Narcotics / Q000302:isolation & purification / Q000652:urine*; D009538:Nicotine / Q000652:urine; D010423:Pentazocine / Q000652:urine; D010633:Phenmetrazine / Q000652:urine; D013997:Time Factors
chemical_list: D007202:Indicators and Reagents; D009294:Narcotics; D009538:Nicotine; D009020:Morphine; D008702:Methaqualone; D004155:Diphenhydramine; D008614:Meperidine; D005959:Glucosidases; D003042:Cocaine; D010423:Pentazocine; D009269:Nalorphine; D008691:Methadone; D003061:Codeine; D010633:Phenmetrazine