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DI Duolong, LIU Yewei, SUN Yun, LIU Xia, JIANG Shenxiang. Study on Quality Level of Zhenkening Syrup[J]. Analysis and Testing Technology and Instruments, 2002, (2): 92-94.
Citation: DI Duolong, LIU Yewei, SUN Yun, LIU Xia, JIANG Shenxiang. Study on Quality Level of Zhenkening Syrup[J]. Analysis and Testing Technology and Instruments, 2002, (2): 92-94.
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Study on Quality Level of Zhenkening Syrup

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  • A RP HPLC method was developed for Determination of Ephedrine Hydrochloride in Zhenkening Syrup. Chromatographic column,Shimadzu ODS (5 μm,id 4.6×250 mm). Mobile phase, acetonitrile/ammonium acetute buffer solution (25/75, v/v). Detection wavelength, 257 nm. The linear correlation was good in the range of 0.4～3.0 μg of Ephedrine Hydrochloride in Zhenkening Syrup (r=0.999 7). The average recovery was 98.96%(n=9) and RSD was 0.35%. The method is simple, rapid and accurate.
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