MECHANISTIC STUDIES OF METAL-ION BINDING TO WATER-SOLUBLE POLYMERS USING POTENTIOMETRY

被引:68
作者
JARVIS, NV
WAGENER, JM
机构
[1] Department of Process Technology, Atomic Energy Corporation, South Africa Ltd, Pretoria, 0001
关键词
D O I
10.1016/0039-9140(94)00231-G
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A method for elucidating metal ion binding mechanisms with water-soluble polymers has been developed in which the polymer is treated as a collection of monomeric units. Data obtained from potentiometric titrations are analysed by the ESTA library of programs and apparent formation constants may be calculated. From this information, predictions may be made as to metal ion separation using complexation-ultrafiltration techniques. The polymer used in this study was Polymin Water-Free and its complexation with Hg(II), Cd(II), Pb(II), Co(II) and Ni(II) was successfully modelled.
引用
收藏
页码:219 / 226
页数:8
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