title: A simple GLC assay of opium.
mesh_terms: D000081:Acetamides; D002849:Chromatography, Gas; D003061:Codeine / Q000032:analysis; D005554:Forensic Medicine; D009020:Morphine / Q000032:analysis; D009892:Opium / Q000032:analysis*
chemical_list: D000081:Acetamides; D009020:Morphine; D009892:Opium; D003061:Codeine