Effect of electrolytes and surfactants on the thermoseparation of an ethylene oxide propylene oxide random copolymer in aqueous solution

被引:22
作者
Cunha, MT
Tjerneld, F
Cabral, JMS
Aires-Barros, MR [1 ]
机构
[1] Inst Super Tecn, Ctr Engn Biol & Quim, P-1000 Lisbon, Portugal
[2] Univ Lund, Dept Biochem, S-22100 Lund, Sweden
来源
JOURNAL OF CHROMATOGRAPHY B | 1998年 / 711卷 / 1-2期
关键词
aqueous two-phase systems; thermoseparation; electrolytes; surfactants; ethylene oxide-propylene oxide copolymer; Breox;
D O I
10.1016/S0378-4347(98)00021-8
中图分类号
Q5 [生物化学];
学科分类号
071010 [生物化学与分子生物学]; 081704 [应用化学];
摘要
The thermoseparation of aqueous solutions of Breox 50 A 1000, an ethylene oxide-propylene oxide 50:50 (w/w) random copolymer, was studied. The cloud-point diagram for Breox in water solution and the effects of electrolytes and surfactants on the cloud-point temperature (CPT) were determined. The Breox concentration in both phases after the thermoseparation was followed with a reversed-phase HPLC method. The effects of separation temperature and additives on phase composition were evaluated. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:53 / 60
页数:8
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