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目的:建立雪胆胃肠丸中黄芪甲苷含量测定的方法。方法:采用HPLC-ELSD法,ODS2柱(250mm×4.6mm,5μm,Hypersil),乙腈-水(35∶65)为流动相;流速1.0mL.min-1;柱温:25℃;检测器:SHIMADZU ELSD-LTⅡ型检测器;检测温度:40℃;ELSD载气:高纯氮气:载气压力:0.35MPa。对黄芪甲苷峰面积值的常用对数值采用外标二点法计算其含量。结果:黄芪甲苷在50.4~252.0mg.L-1范围内与其峰面积线性关系良好,其平均回收率为100.78%,RSD为0.93%(n=6)。结论:所建方法简便易行、准确可靠,可用于雪胆胃肠丸中黄芪甲苷的含量测定。
Objective: To establish a method for the determination of Astragaloside IV in Xuebian gastrointestinal pill. Methods: HPLC-ELSD, ODS2 column (250mm × 4.6mm, 5μm, Hypersil) and acetonitrile-water (35:65) were used as the mobile phase at a flow rate of 1.0mL · min- SHIMADZU ELSD-LT Ⅱ detector; detection temperature: 40 ℃; ELSD carrier gas: high purity nitrogen: carrier gas pressure: 0.35MPa. Astragaloside peak area value of the commonly used logarithm of external standard two-point method to calculate its content. Results: Astragaloside had a good linear relationship with the peak area in the range of 50.4 ~ 252.0 mg.L-1, with an average recovery of 100.78% and a RSD of 0.93% (n = 6). Conclusion: The method is simple, accurate and reliable, and can be used for the determination of Astragaloside IV in Xuebian gastrointestinal pill.