Objective To establish an HPLC method to measure four flavonoids ( baicalin, wogonoside,baicalein and wogonin) in shenyan siwei granules by quantitative analysis of multi-components with single marker ( QAMS ) . Methods Agilent ZORBAX SB-C18 column(4. 6 mm × 250 mm,5 μm) was used. The mobile phase was composed with methanol and 0. 4% phosphoric acid solutionat at 1. 0 mL·min-1 flow rate with gradient elution. The detection wavelength was 278 nm. Baicalin was used as the internal reference substance. The relative correction factors ( RCF) between the baicalin and the other three flavonoids were established to detect the quantitation of baicalin and calculate the quantitation of the other three constituents. The external standard method was used for quantitating the four constituents, and the method was evaluated by comparing to the quantitative results between external standard method and QAMS method. Results The results of QAMS method had no significant difference with those of external standard method. Conclusion It is feasible and accurate to control the quality of shenyan siwei granules with QAMS.%目的 建立高效液相色谱一测多评法,同时测定肾炎四味颗粒中黄芩苷、汉黄芩苷、黄芩素、汉黄芩素的含量.方法 采用Agilent ZORBAX SB-C18(4.6 mm×250 mm,5μm)色谱柱,流动相为甲醇-0.4%磷酸溶液,梯度洗脱,流速1.0 mL·min-1,检测波长为278 nm.以黄芩苷为参照,建立黄芩苷与其他3种成分相对校正因子,计算其他3种成分的含量,实现一测多评,同时利用外标法测定这4种成分的含量,比较两者的差异,验证一测多评法的准确性和科学性.结果 一测多评法的计算结果与外标法的实测值之间差异无统计学意义.结论 一测多评的质量评价模式用于肾炎四味颗粒的质量控制可行,且准确.
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