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目的探讨HPLC法测定炎可宁片中黄芩苷的含量的可行性。方法采用Welch Plus-C_(18)色谱柱(4.6mm×250mm,5μm),以甲醇-0.2%磷酸水溶液(47:53)为流动相,流速1.0m Lmin·~(-1),测定波长为280nm。结果炎可宁片中黄芩苷进样量在1.05~3.15μg(r=0.9999)范围内呈良好线性关系;平均回收率(n=6)为99.5%。结论该方法操作简便,准确可靠,重复性好,可行性好,为炎可宁片的质量控制奠定了基础。
Objective To explore the feasibility of determination of baicalin in Yan Ke Ning tablets by HPLC. Methods The mobile phase was Welch Plus-C_ (18) column (4.6mm × 250mm, 5μm) with methanol-0.2% phosphoric acid solution (47:53) 280nm. Results The injection of baicalin in Yan Ke Ning Tablet showed a good linearity within the range of 1.05-3.15 μg (r = 0.9999). The average recovery (n = 6) was 99.5%. Conclusion The method is simple, accurate, reliable, reproducible and feasible, which lays the foundation for the quality control of Yankening tablets.