聚焦微波辅助提取/HPLC法测定倒提壶中天芥菜碱的含量

Journal of Instrumental Analysis(2014)

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Abstract
采用正交实验方法对聚焦微波辅助提取( FMAE)的实验条件进行优化,以天芥菜碱为提取目标物, HPLC法测定其含量。通过优化,得到最佳实验条件:药材粒度60目,液料比1:35,微波功率420 W,微波时间50 min。HPLC分析条件:以甲醇-0.05%三乙胺( pH 7.5)(30:70)为流动相,在220 nm处检测,天芥菜碱的线性范围为52~1040 mg/L,相关系数( r)为0.9999,检出限为0.0402 mg/L,其加标回收率为97.5%~103%,相对标准偏差为2.4%,方法简单、灵敏度高。
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Key words
focused microwave-assisted extraction,Cynoglossum amabile Stapf et Drumm,he-liotrine,high performance liquid chromatography( HPLC)
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