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研究了在实验温度为２５℃，水相为硝酸介质，离子强度为０．１ｍｏｌ／ｋｇ，氯仿为稀释剂时，５，７－二溴－８－羟基喹啉单独萃取及其与２，２′－联吡啶、２，９－二甲基－１，１０－啡绕啉、４，７－二苯基－１，１０－啡绕啉对三价镅和铕的协同萃取。结果表明：５，７－二溴－８－二羟基喹啉对镅的萃取能力略高于铕，分离因数βＡｍ／Ｅｕ为１．２９；３种协萃剂的协萃能力依次为：４，７－二苯基－１，１０－啡绕啉＞２，２′－联吡啶＞２，９－二甲基－１，１０－啡绕啉，相应的分离因数βＡｍ／Ｅｕ分别为：１０．８０、１．６２和０．４９。
The effects of 5,7-dibromo-8-hydroxyquinoline alone extraction and 2,2-dibromo-8-hydroxyquinoline were studied when the experimental temperature was 25 ℃, the aqueous phase was nitric acid, the ionic strength was 0.1mol / ’-bipyridyl, 2,9-dimethyl-1,10-phenanthroline and 4,7-diphenyl-1,10-phenanthroline for synergistic extraction of trivalent aluminum and europium. The results showed that the extraction ability of 5,7-dibromo-8-dihydroxyquinoline was slightly higher than that of europium, and the separation factor βAm / Eu was 1.29. 7-diphenyl-1,10-phenanthroline> 2,2’-dipyridyl> 2,9-dimethyl-1,10-phenanthroline with the corresponding separation factors βAm / Eu of 10. 80, 1.62 and 0.49.