Complexation of Th (IV) with the siderophore pyoverdine A

被引:26
作者
Bouby, M [1 ]
Billard, I [1 ]
MacCordick, J [1 ]
机构
[1] ULP, CNRS, Chim Nucl IN2P3, IRES, F-67037 Strasbourg 2, France
关键词
thorium; siderophore; complexation; equilibrium constant;
D O I
10.1016/S0925-8388(98)00055-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The complexation of thorium (IV) ions in aqueous solutions by pyoverdine A has been studied. On the basis of a simple model, the thermodynamical equilibrium constant was determined and the value K-Th =(0.15+/-0.03) M was compared with those previously obtained with uranyl ions. However, it is shown that the set of data obtained does not give definite preference to this model with respect to another that involves complexation with 2+ charged thorium ions. (C) 1998 Elsevier Science S.A.
引用
收藏
页码:206 / 210
页数:5
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