摘要
An HPLC-DAD-ELSD method was developed and validated for the simultaneous quantitation of seven active components（liquiritin, baicalin, wogonoside, baicalein, wogonin, ginsenosides Re and ginsenosides Rb1） in n-butanol effective fraction of Xiao Chai Hu Tang. A Diamonsil C18（2） column（4.6 mm × 250 mm, 5 μm） was used as the stationary phase and the mobile phase was consisted of acetonitrile and aqueous phosphate acid（0.05%, v/v）. Gradient elution was carried out at the flow rate of 1 m L/min. The detection wavelength was set at 276 nm and an evaporative light scattering detector was also used. Good linearity for all the seven active components was observed. The established method is simple, fast, reliable, and suitable for the quality control of n-butanol effective fraction of Xiao Chai Hu Tang.
本文建立了同时测定小柴胡汤正丁醇有效部位中甘草苷、黄芩苷、汉黄芩苷、黄芩素、汉黄芩素、人参皂苷Re和人参皂苷Rb1含量的HPLC-DAD-ELSD法。采用Diamonsil C18(2)色谱柱(4.6 mm×250 mm,5.0μm),以乙腈–0.05%甲酸水溶液为流动相,梯度洗脱,流速1 mL/min,二极管阵列检测器的检测波长为276 nm,蒸发光散射检测器的漂移管温度为110 oC,载气流速氮气2.1 L/min,柱温为30 oC。结果表明:7种有效成分在一定范围内线性关系良好。该方法简便、快速、重复性好,可用于同时测定小柴胡汤正丁醇有效部位中7种有效成分的含量。
基金
Foundation for Young Scholars of Shanxi Province,China(Grant No.2011021007-2)
