Stanislas, E [Spectrometric determination of the hydrastin content of the rhizome of Hydrastis canadensis L]. [electronic resource] - Annales pharmaceutiques francaises Jan 1971 - 27-32 p. digital Publication Type: Journal Article ISSN: 0003-4509 Subjects--Topical Terms: Alkaloids--analysisPlants, Medicinal--analysisSpectrophotometry