UPLC-PDA同时测定白屈菜中7个主要生物碱

来源 :2009上海中药与天然药物国际大会 | 被引量 : 0次 | 上传用户:blueblood008
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  本文首次采用UPLC-PDA同时测定白屈菜中7个主要生物碱成分,包括:原阿片碱、白屈菜碱、黄连碱、血根碱、小檗碱、四氢黄连碱、白屈菜红碱.采用ACQUITY UPLC BEHC 18(2.1×100 mm,1.7μm)色谱柱,流动相由乙腈(A)-醋酸-醋酸铵缓冲液(pH 3.0;10mM) (B)梯度组成,达到基线分离.所有标准曲线均呈良好线性关系(r>0.9992),该方法具有较好的精密度和回收率,日内精密度0.87%-1.56%,日间精密度0.93%-1.76%,回收率94.77%-102.27%.运用该方法对全国各地市售的20批样品进行测定,并依据7个生物碱的含量进行了系统聚类(HCA)分析.结果表明UPLC-PDA方法对传统中药(TCMs)快速分析以及中药质量控制非常有用.
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