HPLC-PDA和HPLC-ESI-QTOF/MS法对连钱草中酚酸和黄酮成分的定性及定量分析

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:nankaizhizhuan
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  应用HPLC-PDA和HPLC-ESI-QTOEF/MS联用技术,建立连钱草中酚酸和黄酮类成分的定性和定量分析.采用Allitima C18 (250×4.6mm,5μm)色谱柱,以乙腈-0.2%甲酸-0.5%四氢呋喃(v/v)为流动相,流速1ml/min,检测波长:320nm,在此条件下,建立了不同产地的20批连钱草药材指纹图谱,并根据标准品和文献数据,鉴定出了其中的17个化学成份.在ESI-MS/MS,酚酸和黄酮类成分出现了相应的准分子离子峰及碎片和裂解方式.同时,对连钱草中酚酸(原儿茶醛、绿原酸、咖啡酸、阿魏酸、迷迭香酸)和黄酮(木犀草苷、木犀草素、芹菜素和刺槐素)的9个成份同时进行含量测定.在HPLC-PDA含量测定条件下,各组分分离良好,有良好的线性关系(0.9991-0.9997),加样回收率在90.70%-106.46%之间,检测限和定量限分别低于0.51 μg/ml和0.89μg/ml,日内和日间精密度、重现性及稳定性均小于3%.结果显示,建立的定性和定量方法能可用于连钱草的质量控制.
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