title: Efficiency and sensitivity of two common screening methods for detecting morphine in urine.
mesh_terms: D000433:1-Propanol; D002247:Carbon Isotopes; D002725:Chloroform; D002855:Chromatography, Thin Layer; D005069:Evaluation Studies as Topic; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007475:Ion Exchange Resins; D008403:Mass Screening; D008722:Methods; D009020:Morphine / Q000652:urine*; D010209:Paper; D012995:Solubility; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000652:urine
chemical_list: D002247:Carbon Isotopes; D007475:Ion Exchange Resins; D009020:Morphine; D002725:Chloroform; D000433:1-Propanol