总结了氨基酸制备中的三大萃取技术：离子交换反应萃取，液膜分离萃取和反相胶团萃取及其在毛发水解氨基酸萃取分离方面的应用。
The extraction of amino acids by ion-exchange, liquid membrane and reverse micelle and their applications in the separation of hair-hydrolyzed amino acids are summarized.
用分液漏斗示范液-液萃取并学习如何用“完整的反应操作步骤”检查你的反应能否发生。
Learn how to "work up" your reaction using a separatory funnel to perform a liquid-liquid extraction.
同时，探讨了DAT的成环反应历程，阐述了阴离子高效萃取的原理。
The mechanism of cyclization of DAT and the principle of the anion extraction were also discussed.
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