反相高效液相色谱法测定清炎颗粒中绿原酸的含量

Determination of Chlorogenic Acid in Qingyan Granules by RP-HPLC

目的 :建立以反相高效液相色谱法测定清炎颗粒中绿原酸含量的方法。方法 :采用HypersilBDSC18 色谱柱 ,以甲醇 -0 4 %磷酸溶液 (20∶80)为流动相 ,检测波长为327nm。结果 :绿原酸在进样量174～1392ng之间与峰面积积分值呈良好的线性关系(r=0 9999) ,平均回收率为100 10 %,RSD=1 60 %(n=5)。结论 :本方法灵敏、简便、重现性好 ,可有效地控制清炎颗粒质量。

OBJECTIVE:To establish a RP-HPLC method for the determination of chlorogenic acid in Qingyan granules.METHODS:Waters Breeze System was used with a Hypersil BDS C18 column(5μm,4.6mm×150mm).The mobile phase was composed of methanol and 0.4%(V/V)H3PO4 water solution(20∶80,V/V),flow rate:1.0ml/min;wavelength of UV detector:327nm,column temperature 20℃.RESULTS:The calibration curve of chlorogenic acid was linear within the range of (174～1 392)ng(r=0.9 999).The average recovery was 100.10%,RSD=1.60%(n=5).CONCLUSION:This method is simple,sensitive,as well as reliable,and is available to quality control.