Complex formation of uranium(VI) in periodate solutions

被引：8

作者：

Karbowiak, M

Hubert, S

Fourest, B

Moulin, C

机构：

[1] Inst Phys Nucl, UMR 8608, F-91406 Orsay, France

[2] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

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

来源：

RADIOCHIMICA ACTA | 2004年 / 92卷 / 08期

关键词：

uranium(VI); periodate; complex formation; fluorescence spectroscopy; time-resolved laser-induced fluorescence spectroscopy; capillary electrophoresis;

D O I：

10.1524/ract.92.8.489.39277

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The uranyl/periodate system was investigated by Time-Resolved Laser-Induced Fluorescence Spectroscopy (TRLIFS), and Capillary Electrophoresis (CE) in 0.1 and 0.05 mol L-1 perchloric solutions at pH 2.6, containing various amounts of periodate anions. The formation of only one complex, UO2IO4+, was observed for a periodate concentration ranging from 5 x 10(-5) to 10(-1) mol L-1. The stability constant of this complex was estimated to be log beta(11) = 1.8 +/- 0.2 by TRLIFS (fluorescence titration) and log beta(11) = 2.0 +/- 0.2 by CE, for an ionic strength of 10(-1) and 5 x 10(-2) mol L-1, respectively. Moreover, the 1 : 1 stoichiometrical ratio between uranium(VI) and periodate was confirmed by an analysis of the results obtained from the deconvolution of fluorescence spectra.

引用

页码：489 / 494

页数：6

共 15 条

[1] DIRECT URANIUM TRACE ANALYSIS IN PLUTONIUM SOLUTIONS BY TIME-RESOLVED LASER-INDUCED SPECTROFLUOROMETRY [J].

BERTHOUD, T ;

DECAMBOX, P ;

KIRSCH, B ;

MAUCHIEN, P ;

MOULIN, C .

ANALYTICAL CHEMISTRY, 1988, 60 (13) :1296-1299

[2] Aqueous solutions of uranium(VI) as studied by time-resolved emission spectroscopy:: A round-robin test [J].

Billard, I ;

Ansoborlo, E ;

Apperson, K ;

Arpigny, S ;

Azenha, ME ;

Birch, D ;

Bros, P ;

Burrows, HD ;

Choppin, G ;

Couston, L ;

Dubois, V ;

Fanghänel, T ;

Geipel, G ;

Hubert, S ;

Kim, JI ;

Kimura, T ;

Klenze, R ;

Kronenberg, A ;

Kumke, M ;

Lagarde, G ;

Lamarque, G ;

Lis, S ;

Madic, C ;

Meinrath, G ;

Moulin, C ;

Nagaishi, R ;

Parker, D ;

Plancque, G ;

Scherbaum, F ;

Simoni, E ;

Sinkov, S ;

Viallesoubranne, C .

APPLIED SPECTROSCOPY, 2003, 57 (08) :1027-1038

[3]

CZERWINSKI KR, 1994, RADIOCHIM ACTA, V65, P111

[4] Voltammetric study of uranyl-selenium interactions [J].

Djogic, R ;

Pizeta, I ;

Zelic, M .

ANALYTICA CHIMICA ACTA, 2000, 404 (01) :159-166

[5]

GAREIL P, 1993, COMMUNICATION

[6]

GRENTHE I, 1992, CHEM THERMODYN, P230

[7]

HUTIN MF, 1971, CR ACAD SCI C CHIM, V273, P739

[8]

HUTIN MF, 1975, B SOC CHIM FR I-PHYS, P463

[9] Complexation of U(VI) with iodate ions: determination of stability constants by using spectroscopic methods and capillary zone electrophoresis [J].

Karbowiak, M ;

Fourest, B ;

Hubert, S ;

Moulin, C .

RADIOCHIMICA ACTA, 2003, 91 (09) :505-512

[10] THE NATURE OF U(VI) COMPLEXATION BY HALATES AND CHLOROACETATES [J].

KHALILI, FI ;

CHOPPIN, GR ;

RIZKALLA, EN .

INORGANICA CHIMICA ACTA, 1988, 143 (01) :131-135

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