HPLC法测定正糖胶囊中大黄素的含量
【摘要】 目的 采用高效液相色谱法测定正糖胶囊中大黄素的含量,以控制该制剂的质量。方法 采用大连依利特(C18,250 mm×4.6 mm,5 μm)柱分离虎杖、何首乌中大黄素,以甲醇-0.1%磷酸溶液(85∶15)为流动相;流速为:1 ml/min,检测波长为254 nm。结果 线性范围为0.054~0.27 μg。2,3,5,4/-四羟基二苯乙烯-2-O-β-D-葡萄糖苷的平均回收率为99.45%,RSD=1.20%。结论 试验方法简便易行,测定结果准确、可靠,重现性好。
【关键词】正糖胶囊;大黄素; HPLC
Determination of Emodin in Zhengtang Capsules by HPLC
YIN Ning-ning,LIN Lin,LIN Yong-qiang.
【Abstract】 Objective To determine the content of emodin in Duqiang Tongluo Vinum by HPLC.Methods Amethod was established by HPLC on C18 column,with methanol-0.1 Phosphoric Acid(85∶15)as a mobile phase.The flow rate was 1 ml/min,and the detection wavelength was 254 nm.ResultsThe line range of emodin was 0.054-0.27 μg.The average recoveryrate was 99.45% ......
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