title: Rapid methods of screening micro-quantities of abused drugs from urine samples for microcrystal tests.
mesh_terms: D000143:Acids / Q000652:urine; D000468:Alkalies / Q000652:urine; D000470:Alkaloids / Q000652:urine; D002855:Chromatography, Thin Layer; D003061:Codeine / Q000652:urine; D003460:Crystallization; D003461:Crystallography; D006556:Heroin Dependence / Q000652:urine; D006801:Humans; D004091:Hydromorphone / Q000652:urine; D007202:Indicators and Reagents; D008614:Meperidine / Q000652:urine; D008691:Methadone / Q000652:urine; D008722:Methods; D009020:Morphine / Q000652:urine; D009538:Nicotine / Q000652:urine; D011803:Quinine / Q000652:urine; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D000143:Acids; D000468:Alkalies; D000470:Alkaloids; D007202:Indicators and Reagents; D009538:Nicotine; D009020:Morphine; D008614:Meperidine; D011803:Quinine; D004091:Hydromorphone; D008691:Methadone; D003061:Codeine