title: Quantitative analysis of tertiary and quaternary alkaloids in Corydalis Tuber by ion-pair high-performance liquid chromatography and its application to an oriental pharmaceutical preparation.
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D008518:Medicine, East Asian Traditional; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D000470:Alkaloids