title: Application of high-speed liquid chromatography to the analysis of morphine, heroin, 6-(O-acetyl)morphine and methadone.
mesh_terms: D001322:Autoanalysis; D002852:Chromatography, Ion Exchange; D003932:Heroin / Q000032:analysis*; D013058:Mass Spectrometry; D008691:Methadone / Q000032:analysis*; D008722:Methods; D009020:Morphine / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D003932:Heroin; D009020:Morphine; D008691:Methadone