Determination of ephedrine, phenobarbital, and theophylline in tablets by gas chromatography.
D002849:Chromatography, Gas; D004809:Ephedrine / Q000032:analysis*; D010634:Phenobarbital / Q000032:analysis*; D013607:Tablets; D013806:Theophylline / Q000032:analysis*
D013607:Tablets; D013806:Theophylline; D004809:Ephedrine; D010634:Phenobarbital