HPLC-ELSD测定复方苦参注射液中松醇含量

摘要

Objective To establish an HPLC-ELSD method for the determination of pinitol in Fufang Kushen Injection. Methods Chromatographic condition was as follows:Cosmosil Sugar-D column (250 mm×4.6 mm, 5 μm), the mobile phase consisting of acetonitrile-water in gradient mode, the temperature of the drift tube of 77 ℃, and the gas flow rate of 2.0 L/min. Results The standard curve of pinitol was rectilinear within the range of 0.5-10.0 µg, r=0.999 6 (n=5). The average recovery was 97.30%(RSD=1.29%, n=5). Conclusion The method is simple and rapid, the result is accurate, reliable and reproducible.%目的：建立高效液相色谱-蒸发光散射检测器法测定复方苦参注射液中松醇含量的方法。方法色谱柱为Cosmosil Sugar-D柱(250 mm×4.6 mm,5μm),流动相为乙腈-水,梯度洗脱,漂移管温度77℃,载气流速2.0 L/min。结果松醇质量在0.5～10.0µg 范围内与峰面积呈良好的线性关系,r＝0.9996(n＝5)；平均回收率为97.30%(RSD＝1.29%,n＝5)。结论本方法简便、快速,结果准确、可靠、重复性好。