title: Contribution to the knowledge of Nigerian medicinal plants. I. TLC separation and quantitative evaluation of Alstonia boonei alkaloids.
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D002855:Chromatography, Thin Layer; D009549:Nigeria; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D000470:Alkaloids