Citation: Lin LI, Jian Fang CUI, Kai Rong CUI, Yi ZHOU, Mu Zou WANG, Tong Hui ZHOU. SIMULTANEOUS DETERMINATION OF EPHEDRINE AND ITS ANALOGUES IN URINE BY CAPILLARY GAS CHROMATOGRAPHY[J]. Chinese Chemical Letters, ;1990, 1(2): 175-178.
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A method is developed for the simultaneous determination of ephedrine,pseudoephedrine,norephedrine,norpseudoephedrine and methylephedrine in urine on a capillary column using nitrogen-phosphorus detector.Diphenylamine is used as the internal standard.Calibration graphs are linear down to 1.30ug/ml urine.
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