title: Colorimetric method for the estimation of alkaloids in lobelia and its pharmaceutical preparations.
mesh_terms: D000098:Acetophenones / Q000032:analysis; D000438:Alcohols / Q000032:analysis; D000470:Alkaloids / Q000032:analysis*; D001593:Benzyl Compounds / Q000032:analysis; D003124:Colorimetry; D004304:Dosage Forms; D006851:Hydrochloric Acid; D019684:Magnoliopsida / Q000032:analysis*; D008722:Methods; D010880:Piperidines / Q000032:analysis*; D013431:Sulfates
chemical_list: D000098:Acetophenones; D000438:Alcohols; D000470:Alkaloids; D001593:Benzyl Compounds; D004304:Dosage Forms; D010880:Piperidines; D013431:Sulfates; D006851:Hydrochloric Acid