title: A thin-layer chromatographic procedure for the separation of aspirin, cocaine, caffeine, codeine, heroin, 6-monoacetyl morphine, and morphine.
mesh_terms: D001241:Aspirin / Q000032:analysis*; D002110:Caffeine / Q000032:analysis*; D002855:Chromatography, Thin Layer; D003042:Cocaine / Q000032:analysis*; D003061:Codeine / Q000032:analysis; D005782:Gels; D003932:Heroin / Q000032:analysis; D008722:Methods; D009019:Morphinans / Q000032:analysis*; D009020:Morphine / Q000032:analysis; D012822:Silicon Dioxide; D012997:Solvents
chemical_list: D005782:Gels; D009019:Morphinans; D012997:Solvents; D002110:Caffeine; D003932:Heroin; D012822:Silicon Dioxide; D009020:Morphine; D003042:Cocaine; D001241:Aspirin; D003061:Codeine