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[求助] 关于胆碱氨基酸类离子液体合成问题

请问您的离子液体是自己合成吗?在合成过程中有没有遇到过这样的问题:
(1)比如天冬氨酸水中溶解度很小,如果制成水溶液再用胆碱滴加,会耗费大量的水,这个滴加步骤您是如何做的?
(2)这类离子液体合成过程中,是否先把水旋蒸出去,在加乙腈-甲醇洗涤?但是把水旋蒸出去之后,离子液体太黏,导致洗涤液无法与离子液体充分混合,并且过滤时离子液体基本率不过去,也是因为太黏。请问这个步骤您是怎么做的?谢谢
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