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高效液相-质谱联用法不同色谱柱测定马钱苷和芍药苷的比较分析

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摘要 目的:HPLC-MS法比较Phenomenex Kinetex C18(150 mm×4.6 mm,2.6μm)色谱柱、Wondasil C18(150 mm×4.6 mm,5μm)色谱柱对马钱苷和芍药苷分离效果。方法:以甲醇-0.02%甲酸(28∶72)为流动相;流速为0.7 mL.min-1;柱温30℃。先后采用2种不同色谱柱,对马钱苷和芍药苷标准溶液及含药血浆样品进行分析测定,比较其保留时间tR、理论塔板数N、拖尾因子Tf。结果:Phenomenex Ki-netex C18色谱柱和Wondasil C18色谱柱测定血浆样品马钱苷和芍药苷,保留时间分别为19.652、16.893 min(马钱苷)和18.467、19.459 min(芍药苷),理论塔板数分别为86 033、16 886(马钱苷)和81 342、17 523(芍药苷),拖尾因子分别为1.03、1.1(马钱苷)和1.02、1.13(芍药苷),2种色谱柱最低定量限分别为2.5 ng.mL-1和5 ng.mL-1。结论:Phenomenex Kinetex C18色谱柱,峰形尖锐,灵敏度较高,理论塔板数较大,但保留时间与Wondasil色谱柱相近。
出处 《中国医院药学杂志》 CAS CSCD 北大核心 2012年第12期985-987,共3页 Chinese Journal of Hospital Pharmacy
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