title: Studies on the quantitative extraction of morphine from urine using nonionic XAD-2 resin.
mesh_terms: D000433:1-Propanol; D000328:Adult; D000661:Amphetamine / Q000652:urine; D002247:Carbon Isotopes; D002845:Chromatography; D002855:Chromatography, Thin Layer; D005069:Evaluation Studies as Topic; D006801:Humans; D006838:Hydrocarbons; D006863:Hydrogen-Ion Concentration; D008297:Male; D008403:Mass Screening; D008722:Methods; D009020:Morphine / Q000302:isolation & purification / Q000652:urine*; D010634:Phenobarbital / Q000652:urine; D011137:Polystyrenes; D012116:Resins, Plant; D012995:Solubility; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000652:urine; D013997:Time Factors; D014556:Urine
chemical_list: D002247:Carbon Isotopes; D006838:Hydrocarbons; D011137:Polystyrenes; D012116:Resins, Plant; D009020:Morphine; C003771:Amberlite XAD-2 resin; D000433:1-Propanol; D000661:Amphetamine; D010634:Phenobarbital