【摘要】 目的:采用HPLC-ELSD法测定了16批不同产地蒙古黄芪中黄芪甲苷、黄芪皂苷Ⅰ、黄芪皂苷Ⅱ、黄芪皂苷Ⅲ的含量。方法:使用DIKMA Diamonsil C18(150 mm×4.6 mm,5μm)色谱柱,乙腈-水为流动相,梯度洗脱,流速:1 m L·min-1,柱温:30℃。ELSD检测器参数:漂移管温度90℃,空气流量2.8 L·min-1。采用SPSS 16.0进行聚类分析。结果:黄芪甲苷、黄芪皂苷Ⅰ、黄芪皂苷Ⅱ和黄芪皂苷Ⅲ在进样量分别为0.093 2-1.02μg(r=0.999 5),0.789-8.78μg(r=0.999 7),0.506-3.13μg(r=0.999 6),0.016 1-1.38μg(r=0.999 2)范围内,平均回收率分别为97.55%、98.61%、99.68%、98.58%,RSD分别为1.2%、1.3%、1.3%、1.2%。聚类分析结果表明,单一采用黄芪甲苷为指标的聚类分析无法区分各省份蒙古黄芪,而同时采用4种皂苷含量为指标,可将不同省份蒙古黄芪明显区分开。结论:本方法简单、快捷、准确,能够更加直接地反映出不同产地蒙古黄芪原药材的质量状况,为蒙古黄芪药材的质量控制研究提供了新思路。更多还原

【Abstract】 The HPLC-ELSD method was used in the content determination of astragaloside, astragaloside Ⅰ, astragaloside Ⅱ and astragaloside Ⅲ in Mongolia Radix Astragali(Astragalus membranaceus(Fisch.) Bge. var. mongholicus(Bge.) Hsiao) among 16 batches from various habitats. The DIKMA Diamonsil C18(150 mm × 4.6 mm, 5 μm) was adopted with acetonitrile and water as the mobile phase at a gradient mode program. The flow rate was 1.0 m L·min-1. And the column temperature was 30℃. The ELSD detector parameters were the drift tube temperature at 90℃, and the air flow rate of 2.8 L·min-1. The SPSS 16.0 software was used in the cluster analysis of content determination. The results showed that when the injection volume was within the range of 0.093 2-1.02 μg(r = 0.999 5), 0.789-8.78 μg(r = 0.999 7), 0.506-3.13 μg(r = 0.999 6), and 0.016 1-1.38 μg(r = 0.999 2) for astragaloside, astragaloside Ⅰ, astragaloside Ⅱ and astragaloside Ⅲ, respectively, the average recoveries were 97.55%, 98.61%, 99.68%, 98.58% with RSD of 1.2%, 1.3%, 1.3%, 1.2%, respectively. The results of cluster analysis showed that the single using of astragaloside as index was unable to differentiate Mongolia Radix Astragali from various habitats. However, the simultaneous determination of 4 types of astragalosides as indexes can differentiate Mongolia Radix Astragali from various habitats. It was concluded that the method was simple, quick and accurate, which can directly reflect the quality status of Mongolia Radix Astragali from different origins. It also provided new ideas for the quality control of Mongolia Radix Astragali.更多还原