title: High-performance liquid chromatographic analysis of methadone hydrochloride in pharmaceuticals.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D007202:Indicators and Reagents; D008691:Methadone / Q000032:analysis*; D010226:Parabens / Q000032:analysis
chemical_list: D007202:Indicators and Reagents; D010226:Parabens; C015358:methylparaben; D008691:Methadone