研究了栀子乙腈水提取液中的栀子苷在诱导相分离后在两相中的分配行为,建立了乙腈/水分相体系分离纯化栀子苷的新方法.重点考察了能使乙腈/水体系分相的诱导剂的种类,分析了诱导剂的组成比例以及用量、乙腈的体积分数、样品加入量和温度对栀子苷分配行为的影响.当温度为25℃时,栀子的乙腈/水(体积比1∶1)提取液中加入KCl与MgSO4组成的混盐(质量比2∶1)分相诱导剂后,栀子苷的萃取率达到81.63％,含量由分相前的3.05％提高至13.54％.
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