title: Quantitative gas chromatographic determination of the major alkaloids in gum opium.
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D003061:Codeine / Q000032:analysis; D008722:Methods; D009020:Morphine / Q000032:analysis; D009665:Noscapine / Q000032:analysis; D009892:Opium / Q000032:analysis*; D010208:Papaverine / Q000032:analysis; D012997:Solvents; D013696:Temperature; D013797:Thebaine / Q000032:analysis
chemical_list: D000470:Alkaloids; D012997:Solvents; D013797:Thebaine; D009020:Morphine; D009892:Opium; D009665:Noscapine; D010208:Papaverine; D003061:Codeine