Determination of Forsythin content in Shexiang Jiegu Jiaonang by HPLC
【Abstract】 OBJECTIVE:To set up a method for quality control of Shexiang Jiegu Jiaonang METHOD HPLC method was developed to quantitative determination. COLUMN Agilent Technologies ZORBAX Extend-C18 4.6×250mm, 5μm.The mobilic phase was acetonifrile-water (21:79V/V).The column temperature was 30℃,the wavelength for detection was 203nm,flow rate was 1.0ml·min-1. RESULTS The paeonol average of recovery rate was 97.6%, and RSD was 1.0%(n=6). CONCLUSION The method is simple, accurate and suitable for its assaying.
精密吸取三七皂苷R1对照品贮备液(浓度:0.25mg.ml-1)适量,加甲醇配成浓度分别为0.005、0.01、0.05、0.10、0.15、0.25mg·ml-1的溶液6份,摇匀,用0.22μm微孔滤膜过滤。精密吸取续滤液各10μl,注入液相色谱仪,测得峰面积。以峰面积(A)为纵坐标,其浓度(C)为横坐标,得三七皂苷R1的回归方程为:A=392250.2 C +8620.1,r =0.9998(n=6)。结果表明,三七皂苷R1在0.005~0.25mg·ml-1范围内峰面积与其浓度呈良好线性关系。