黄褐毛忍冬不同炮制品中绿原酸的HPLC法含量测定

Determination of chlorogenic acid in different processed crude drugs of Lonicera fulvotomentosa by HPLC

目的 比较黄褐毛忍冬花蕾、白花、黄花生晒品及蒸晒品中绿原酸的含量。方法 采用 HPLC法 ,反相 Hy-persil C1 8柱 ,以乙腈 -0 .4%磷酸溶液 (13∶ 87)为流动相 ,检测波长为 3 2 7nm。结果 黄褐毛忍冬花蕾、白花、黄花生晒品绿原酸含量分别为 0 .5 4% ,0 .81% ,0 .5 7% ;蒸晒品中绿原酸含量分别为 2 .14 % ,1.65 % ,2 .0 4%。

Object To compare the contents of chlorogenic acid in the different processed crude drugs of Lonicera fulvotomentosa Hsu et S.C. Cheng. Methods The contents of chlorogenic acid were deter mined by HPLC. Chromatographic conditions included Hypersil C 18 column and the mobile phase consisting of a mixture of acetonitrile 0 4% phosphoric acid (13∶87). Chlorogenic acid was detected at 327 nm wavelength. Results The contents of chlorogenic acid were 0 54%, 0 81%, 0 57% in the sun cured flower bud, white bloom, gold flower in L. fulvotomentosa and 2 14%, 1 65%, 2 04% in the steaming sun cured crude drugs, respectively. Conclusion The contents of chlorogenic acid in the steaming sun cured crude drugs are higher than those in the sun cured crude drugs.