The detection of ephedrine in biological material by ultraviolet spectrophotometry.
D055598:Chemical Phenomena; D002621:Chemistry; D004809:Ephedrine / Q000032:analysis* / Q000097:blood / Q000652:urine; D006801:Humans; D010656:Phenylephrine / Q000032:analysis*
D010656:Phenylephrine; D004809:Ephedrine