Poly(ethylene glycol)-based aqueous biphasic systems: effect of temperature on phase equilibria and on partitioning of 1,10-phenanthroline-copper(II) sulphate complex

被引:16
作者
Fontana, D [1 ]
Ricci, G [1 ]
机构
[1] ENEA CR Casaccia, Innovat Dept, INN NUMA CHUM, I-00060 Rome, Italy
来源
JOURNAL OF CHROMATOGRAPHY B | 2000年 / 743卷 / 1-2期
关键词
aqueous two-phase systems; poly(ethylene glycol); 1,10-Phenanthroline-copper(II) sulphate;
D O I
10.1016/S0378-4347(00)00179-1
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Solvent extraction is a proven technology for the selective removal and recovery of metal ions from aqueous solutions: the use of aqueous biphase systems can be attractive for many separation processes. These systems have usually been used previously at temperatures around 25 degrees C; however it is possible that better separations may be achieved at other temperatures: phase diagrams have been determined for a polyethylene glycol (AMW 3350)-ammonium sulphate-water system over the temperature range 269-343 K and the effect of temperature on partitioning has been determined for 1,10-phenanthroline-copper(II) sulphate complex. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:231 / 234
页数:4
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