LIU Qing-xin, JIAO Yan, PAN Hai-xia, et al. Determination of Contens of Baicalin in Qingre Xingnaoling Tablet by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(22): 83-85.
LIU Qing-xin, JIAO Yan, PAN Hai-xia, et al. Determination of Contens of Baicalin in Qingre Xingnaoling Tablet by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(22): 83-85.DOI:
Objective: To establish a method for determination of the contens of baicalin in Qingre Xingnaoling Tablet. Method: Using HPLC method with Phenomenex Luna C18(2) column(4.6 mm×250 mm
5 μm). The mobile phase consisted of methol-0.2%phosphoric acid solution (58 ∶42
pH adjusted to 3.0 using triethylamine). The column temperature was at room temperature. The detection wavelength was set at 280 nm. Result: The linear range of baicalin was 22.18-110.92 mg·L-1(r=0.999 9
n=5). The average recovery rate was 101.72%(RSD 1.66%
n=9). Conclusion: The method is selective and reproducible
which can be used for the quality control method of Qingre Xingnaoling tablet.