Investigation of the interaction between 1-hydroxyethane-1,1′-diphosphonic acid (HEDP) and uranium(VI)

被引：70

作者：

Jacopin, C ^{[1
]}

Sawicki, M

Plancque, G

Doizi, D

Taran, F

Ansoborlo, E

Amekraz, B

Moulin, C

机构：

[1] CEA Saclay, DEN, DPC, SECR,LSRM, F-91191 Gif Sur Yvette, France

[2] DSV, DBJC, SMMCB, F-91191 Gif Sur Yvette, France

[3] CEA Valrho, DEN, VRH, DRCP,CETAMA,DIR, F-30207 Bagnols Sur Ceze, France

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 16期

关键词：

D O I：

10.1021/ic0343509

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A detailed study, using a panel of spectroscopic analytical methods, of the complexation between 1-hydroxyethane1,1'-diphosphonic acid (HEDP) and uranyl ion (UO22+) is reported. Results suggest that the metal complex is present as only 1:1 (metal/ligand) species at low concentration (<10(-4) M). The conditional constants of this complex were determined at various pH using time-resolved laser-induced fluorescence (TRLIF) and electrospray ionization mass spectrometry (ESI-MS). Further investigations indicate the presence of a 1:2 (metal/ligand) complex at higher concentrations (similar to10(-2) M). Selectivity studies as well as structural aspects are presented.

引用

页码：5015 / 5022

页数：8

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