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.

• 摘要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。