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目的建立咳速停的质量控制方法。方法在Spherigel ODS C18,5μm,4.6mm×25cm柱上,甲醇-0.4%磷酸(52:48)为流动相,检测波长为波长为280nm,流速为1.0ml/min。结果黄芪苷的量在0.24～1.20μg范围内呈良好的线性关系(r=0.9998),回归方程为A=3995054C+203489。精密度试验RSD为0.23%,该方法平均回收率为98.83%,RSD=1.04%。结论该方法简单、快速、准确。
Objective To establish a quality control method for cough stop. The method was performed on a Spherigel ODS C18, 5μm, 4.6mm × 25cm column with methanol-0.4% phosphoric acid (52:48) as the mobile phase. The detection wavelength was 280nm and the flow rate was 1.0ml/min. Results The amount of baicalin showed a good linear relationship (r=0.9998) in the range of 0.24 to 1.20 μg. The regression equation was A=3995054C+203489. The precision test RSD was 0.23%. The average recovery of the method was 98.83% and the RSD was 1.04%. Conclusion This method is simple, rapid and accurate.