摘要
目的:建立柴葛清热颗粒中柴胡皂苷a、葛根素和黄芩苷含量的测定方法。方法采用HPLC法,色谱柱为Agilent-C18色谱柱(150 mm×4.6 mm,5μm),流动相:0.1﹪磷酸水溶液(A)-乙腈(B),梯度洗脱(0-12 min,15﹪-20﹪ B;12-30 min,20﹪-25﹪ B),流速为1.0 mL·min-1,检测波长210 nm,柱温30℃,进样量20μL。结果胡皂苷a在1.96-31.36μg·mL-1,葛根素在9.4-150.4μg·mL-1,黄芩苷1.52-24.32μg·mL-1范围内线性关系良好。平均回收率分别为97.65﹪、103.56﹪、102.83﹪,RSD分别为1.29﹪、1.14﹪、1.20﹪。结论该方法准确简便重复性好,可用于柴葛清热颗粒中柴胡皂苷a、葛根素和黄芩苷的含量测定。
Objective To establish a method for the determination of saikosaponin a, paeoniflorin and baicalin in Chaigeqingre granula by HPLC.Methods The chromatographic column was Agilent-C18(150 mm×4.6 mm, 5 μm), using the gradient mobile phase composed of 0.1% H3PO4 (A) -acetonitrile (B), (0-12 min, 15-20% B; 12-30 min, 20-25% B), the lfow rate was 1.0 mL·min-1 and the detection wavelength was 210 nm. The temperature of column was 30℃, and the injection volume was 20 μL.Results The linear range of saikosaponin a, paeonilforin and baicalin was 1.96-31.36 μg·mL-1, 9.4-150.4 μg·mL-1 and 1.52-24.32 μg·mL-1 with average recovery of 97.65% (RSD=1.29%), 103.56% (RSD=1.14%), 102.83% (RSD=1.20%).Conclusion The method is convenient, accurate and reproducible for the determination of saikosaponin a, paeonilforin and baicalin in Chaigeqingre granula.
出处
《中国药物警戒》
2016年第6期338-340,共3页
Chinese Journal of Pharmacovigilance
基金
湖北省科技计划项目(2012DCA03001)