OBJECTIVE:To establish a method for simultaneous determination of the confents of calycosin-7-glucoside,calyco-sin and formononetin in Shenqi granule. METHODS:HPLC was performed on the column of Welch Ultimate XB-C18 with mobile phase of acetonitrile-0.2% Formic acid solution (gradient elution) at flow rate of 1.0 ml/min,detection wavelength was 250 nm, column temperature was 35 ℃,and injection volume was 10 μl. RESULTS:The linear range of sample quantity was 0.008-0.32 μg for calycosin-7-glucoside(r=0.999 9),0.005-0.20 μg for calycosin(r=0.999 7)and 0.007-0.28 μg for formononetin(r=0.999 8);RSDs of precsion,stability and reproducibility tests were no more than 1.59%;recoveries were 98.17%-99.17%(RSD=0.67%, n=6),98.03%-99.66%(RSD=0.57%,n=6) and 98.16%-99.12%(RSD=0.43%,n=6). CONCLUSIONS:The method is sim-ple,accurate and reliable,and can be used for the content determination of Shenqi granule ofiso flavones.%目的:建立同时测定参芪颗粒中毛蕊异黄酮葡萄糖苷、毛蕊异黄酮、芒柄花素含量的方法.方法:采用高效液相色谱法.色谱柱为Welch Ultimate XB-C18,流动相为乙腈-0.2%甲酸溶液(梯度洗脱),检测波长为250 nm,柱温为35℃,流速为1.0 ml/min,进样量为10μl.结果:毛蕊异黄酮葡萄糖苷、毛蕊异黄酮、芒柄花素进样量线性范围分别为0.008~0.32、0.005~0.20、0.007~0.28μg(r为0.999 9、0.999 7、0.999 8);精密度、稳定性、重复性试验的RSD≤1.59%;加样回收率范围分别为98.17%~99.71%、98.03%~99.66%、98.16%~99.12%,RSD分别为0.67%、0.57%、0.43%(n=6).结论:该方法简便、准确、可靠,可用于参芪颗粒中黄酮类成分的含量测定.
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