Separation and quantitative analysis of ephedra alkaloids by gas chromatography and its application to evaluation of some ephedra species collected around Himalaya.
D002849:Chromatography, Gas; D004809:Ephedrine / Q000031:analogs & derivatives / Q000302:isolation & purification*; D010665:Phenylpropanolamine / Q000302:isolation & purification; D010936:Plant Extracts
D010936:Plant Extracts; D010665:Phenylpropanolamine; D004809:Ephedrine