Determination of Paeoniflorin in Bazhen Pills and Bazhen Yimu Pills by High Performance Capillary Electrophoresis(HPCE) / 中国药房

ABSTRACT

OBJECTIVE:A HPCE method for determination of paeoniflorin in Bazhen pills and Bazhen Yimu pills was developed METHODS:Measurements were carried out in a buffer solution containing 50mmol/L borax solution (pH 10 6),at detection wavelength 230nm with 20KV running voltage applied to a 50cm?50?m capillary RESULTS:The linear range of paeoniflorin was in the range of 0 0 625～1 0mg/ml(r=0 9 995),RSD within days was 1 61%,RSD between days was 3 15% The recovery of paeoniflorin was 98 19%～98 45% The results of detection for Bazhen pills and Bazhen Yimu pills were highly correlated to those obtained by HPLC CONCLUSION:The method is simple,rapid,economical and accurate