title: An improved column-chromatographic quantitative isolation of diosgenin and yamogenin from plant crude extracts prior to their determination by infrared spectrophotometry.
mesh_terms: D002845:Chromatography; D004144:Diosgenin; D008722:Methods; D010840:Phytosterols / Q000302:isolation & purification; D010936:Plant Extracts / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D013150:Spirostans / Q000302:isolation & purification*
chemical_list: D010840:Phytosterols; D010936:Plant Extracts; D013150:Spirostans; D004144:Diosgenin; C514916:yamogenin