title: An improved procedure for thin-layer and column chromatography of xanthones on silica gel.
mesh_terms: D002845:Chromatography; D002855:Chromatography, Thin Layer; D004492:Edetic Acid; D005782:Gels; D008722:Methods; D014966:Xanthenes / Q000032:analysis*
chemical_list: D005782:Gels; D014966:Xanthenes; D004492:Edetic Acid