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[求助] 蒙脱土吸附苯胺(离子交换)后,如何使其解吸

苯胺在酸性条件下可以质子化,蒙脱土具有阳离子交换容量,因此可以与苯胺基阳离子发生离子交换反应。吸附后我调pH至碱性、用甲醇和乙腈萃取、用Ca2+或K+交换,甚至先调pH至碱性再用甲醇萃取,这几种方法都不能使交换的苯胺阳离子解吸。跪求大师指点一二,小弟迷茫至极!
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大家帮帮忙啊
2楼2013-07-26 14:44:05
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