title: The combination of gas chromatography and mass spectrometry in the identification of drugs and metabolites.
mesh_terms: D000109:Acetylcholine / Q000032:analysis; D000470:Alkaloids / Q000032:analysis; D001923:Brain Chemistry; D002746:Chlorpromazine / Q000097:blood; D002849:Chromatography, Gas / Q000295:instrumentation; D003201:Computers; D006213:Hallucinogens / Q000032:analysis; D006632:Histamine / Q000378:metabolism / Q000652:urine; D006801:Humans; D004364:Pharmaceutical Preparations / Q000032:analysis*; D010622:Phencyclidine / Q000032:analysis; D010944:Plants / Q000032:analysis; D013057:Spectrum Analysis / Q000295:instrumentation; D014020:Tissue Extracts / Q000032:analysis; D014363:Tryptamines / Q000032:analysis
chemical_list: D000470:Alkaloids; D006213:Hallucinogens; D004364:Pharmaceutical Preparations; D014020:Tissue Extracts; D014363:Tryptamines; D006632:Histamine; D010622:Phencyclidine; D000109:Acetylcholine; D002746:Chlorpromazine