title: Use of precoated, flexible thin-layer sheets in drug screening.
mesh_terms: D000470:Alkaloids / Q000097:blood / Q000652:urine; D000661:Amphetamine / Q000097:blood / Q000652:urine; D001463:Barbiturates / Q000097:blood / Q000652:urine; D002021:Buffers; D002855:Chromatography, Thin Layer / Q000295:instrumentation; D003932:Heroin; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D008722:Methods; D009020:Morphine / Q000652:urine; D019966:Substance-Related Disorders
chemical_list: D000470:Alkaloids; D001463:Barbiturates; D002021:Buffers; D003932:Heroin; D009020:Morphine; D000661:Amphetamine