title: On-calcium periodate reaction method for analysis of ephedrine sulfate in solid dosage forms: collaborative study.
mesh_terms: D002845:Chromatography / Q000379:methods; D004304:Dosage Forms; D004809:Ephedrine / Q000032:analysis*; D007202:Indicators and Reagents; D010504:Periodic Acid; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
chemical_list: D004304:Dosage Forms; D007202:Indicators and Reagents; D010504:Periodic Acid; D004809:Ephedrine