【摘要】 目的:建立以高效液相色谱-蒸发光散射(HPLC-ELSD)检测法测定清开灵栓中胆酸和猪去氧胆酸含量的方法。方法:色谱柱为Diamonsil C18(250mm×4.6mm,5μm),流动相为0.1%甲酸-乙腈(梯度洗脱),ELSD检测器漂移管温度为110℃,氮气流速为2.0L·min-1。结果:胆酸和猪去氧胆酸的进样量分别在0.59～7.40μg(r=0.9996)、0.38～4.8μg(r=0.9997)范围内与各自峰面积积分值呈良好线性关系;二者平均回收率分别为99.20%和98.57%,RSD分别为1.4%(n=6)、1.8%(n=6)。结论:本方法简便、准确、分离效果好,可用于清开灵栓的质量控制。更多还原

【Abstract】 OBJECTIVE:To determine the contents of cholalic acid and hyodeoxycholic acid in Qingkailing suppository by HPLC-ELSD(high performance liquid chromatography with evaporative light scattering detection). METHODS: The analytical column was Diamonsil C18(250 mm×4.6 mm, 5 μm) and the mobile phase consisted of 0.1% formic acid-acetonitrile(gradient elution) with the temperature of the drift tube of the light scattering detector set at 110 ℃ and the flow rate of the nitrogen gas at 2.0 L·min-1. RESULTS: The linear ranges of cholalic acid and hyodeoxycholic acid were 0.59～7.4 μg(r=0.999 6)and 0.38～4.8 μg(r=0.999 7),respectively,with their average recoveries at 99.20%(RSD=1.4%,n=6)and 98.57%(RSD=1.8%,n=6), respectively. CONCLUSION: The method is simple, accurate and well-separated, and it is applicable for the quality control of Qingkailing suppository.更多还原