title: Simultaneous separation of the principal alkaloids in gum opium by isocratic, reversed-phase high-performance liquid chromatography.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D009892:Opium / Q000032:analysis*
chemical_list: D000470:Alkaloids; D009892:Opium