Two ephedra methods successfully refined, validated, and now advanced to the AOAC collaborative study.
D000470:Alkaloids / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D002853:Chromatography, Liquid; D019587:Dietary Supplements / Q000032:analysis; D029789:Ephedra / Q000737:chemistry*; D006801:Humans; D013058:Mass Spectrometry; D013056:Spectrophotometry, Ultraviolet; D014481:United States; D014486:United States Food and Drug Administration
D000470:Alkaloids