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《Chinese Journal of Ethnomedicine and Ethnopharmacy》 2009-09
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Determination of Ephedrine hydrochloride in Maxing Cough Syrups by HPLC

Wu Long-yun1 LIU Yuan2 Song Zhi-zhao2 Wen Zhi-yun2(1.Department of Pharmacy,No.303 Hospital of PLA,Nanning,Guangxi,530021;2.Guangxi Institute for Chinese Medicine & Pharmaceutical Science,Nanning,Guangxi,530022,China)  
Objective:Aim to set up determination the contents of Ephedrine hydrochloride in Maxing Cough Syrups.METHODS: HPLC method was used.Chromatographic condition included C18(4.6mm×250mm,5mm) and the mobile phase consisting of acetonitrile-0.1% phosphoric acid and 0.1% triethylamine solution(4:96),with a detection wavelength of 210nm and the temperature to room temperature.RESULT: The calibration curves were linear in the range of 10.0~60.0 μg for Ephedrine hydrochloride,r=0.9994,average recovery of Ephedrine hydrochloride was 96.5%,RSD was 0.46%(n=5).CONCLUSIONS: The method is simple,accurate,reproducible and can be used as the determination of the preparations.
【CateGory Index】: R286.0
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