HPLC法测定复方芩柏颗粒中黄芩苷和盐酸小檗碱含量

目的 建立复方芩柏颗粒中黄芩苷、盐酸小檗碱含量测定的高效液相色谱法.方法 采用Diamonsil C18柱,以甲醇-水(合0.05%磷酸和0.1%三乙胺)为流动相进行梯度洗脱,检测波长276 nm.结果 在该色谱条件下黄芩苷、盐酸小檗碱分别在10.08～201.6 mg·L-1、4.08～81.6 mg·L-1浓度范围内呈良好的线性关系.其平均回收率分别为98.1%、97.9%,RSD分别为1.11%、1.24%.结论 该法简便可行、重复性好,可为复方芩柏颗粒制剂的质量控制标准提供参考依据.

Determination of Baicalin and Berberine Hydrochloride in Compound Qinbo Granules by HPLC

Objective To establish a HPLC method for the determination of baicalin and berberine hydrochloride in Com-pound Qinbo Granules. Methods The gradient elution was performed on a Diamonsil C18 column using method-water (0. 05 % phosphate acid and 0. 1% trithylamine) as mobile phase, and the detection wavelength was 276 nm. Results The linear calibration curve of baicalin was obtained in the range of 10. 08～201.6 mg·L-1 with an average recovery of 98. 1% (RSD=1.11%). The linear calibration curve of berberine hydrochloride was in the range of 4. 08～81.6 mg·L-1 with an average re-covery of 97.9 % (RSD=1.24 %). Conclusion The method is simple and reproducible. It can be used for the quality con-trol of Compound Qinbo Granules.