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采用高效液相色谱法测定成药舒脑灵胶囊中葛根素的含量 ,为控制其制剂的质量提供了可靠而简便的方法。经方法学考察 ,本法以甲醇 水 (2 5 :75 )为流动相、流速 1 0ml/min ;UV检测波长 2 5 0nm ;柱温 40℃。结果葛根素在 10～ 10 0mg/L范围内呈良好线性关系 (r =0 .9999) ,平均回收率为 98 98% ,RSD =1 6 %。
The content of puerarin in Chengyaoling capsules was determined by high performance liquid chromatography, which provided a reliable and simple method for controlling the quality of its preparations. After methodological investigation, this method uses methanol water (25:75) as the mobile phase, flow rate 100ml/min, UV detection wavelength of 250nm, and column temperature of 40°C. Results The puerarin showed a good linear relationship (r = 0.9999) in the range of 10-100 mg/L. The average recovery was 98 98%, and the RSD was 6%.