摘要:
目的 建立高效液相色谱法测定乌金胶囊中毛蕊异黄酮含量。 方法 色谱柱为ZORBA Bonus-RP (4.6 mm×260 mm,5 μm)分析柱,流动相乙腈-水(含0.1%甲酸)梯度洗脱,柱温25℃,检测波长为260 nm,流速1.0 ml/min,进样量10 μl。 结果 毛蕊异黄酮在7.4~117.6 μg/ml(r=1.000)浓度范围内呈良好线性关系,其回归方程为Y= 34.002X-3.451 2,回收率为95.24% (RSD=2.10%)。6批乌金胶囊中异黄酮含量在9.26~23.14 μg/g之间。 结论 该方法简便、快速、准确,可用于乌金胶囊的质量控制。
Abstract:
Objective To explore method for determination of calycosin contents in Wujin capsule by HPLC. Methods The sample was studied on ZORBA Bonus-RP (4.6 mm×260 mm,5 μm) column,the mobile phase consisted of acetonitrile and H2O-0.1% HCOOH (gradient elution),the temperature of column was 25℃,the UV detection wavelength was set at 260 nm,flow speed was 1.0 ml/min and injection volume was 10 μl. Results The calycosin calibration curve was at the range of 7.4-117.6 μg/ml (r=1.000),with their regression function being Y=34.002 X-3.451 2.The recovery of calycosin was 95.24% (RSD=2.10%).6 batches of Wujin capsule calycosin contents were 9.26-23.14 μg/g. Conclusion HPLC was an accuracy and simple method for determining the content of calycosin in Wujin capsule.