HPLC Determination of Chlorogenic Acid Content in Yinqiao Jiedu Oral Liquid / 中药新药与临床药理

ABSTRACT

Objective To establish the HPLC determination method of chlorogenic acid for developing the quality standard of Yinqiao Jiedu Oral Liquid.Methods HPLC method was performed on an E.Merck LiChrospher 100RP-18 column(250 mm? 4 mm,5 ? m).The mobile phase consisted of acetonitrle and o.4 % phosphoric acid(10100).The flow rate was 1.0 mL/min,column temperature was 30 ℃,and the detection wavelength was 327 nm.Results Chlorogenic acid was linear at the range of 0.12～ 0.63 ? g(r=0.999 6),the average recovery was 96.68 %,and RSD was 1.56 % .Conclusion This method is accurate,reliable,reproducible,and can provide evidence for the quality control of Yinqiao Jiedu Oral Liquid.