Kinetic investigation of Eu(III)-humate interactions by ion exchange resins

Jean Marc Monsallier; Wolfram Schüssler; Gunnar Buckau; Thomas Rabung; Jae Il Kim; Dominic Jones; Rose Keepax; Nick Bryan

doi:10.1021/ac020668r

Kinetic investigation of Eu(III)-humate interactions by ion exchange resins

Jean Marc Monsallier, Wolfram Schüssler, Gunnar Buckau, Thomas Rabung, Jae Il Kim, Dominic Jones, Rose Keepax, Nick Bryan

Research output: Contribution to journal › Article › peer-review

Abstract

The kinetic stability of radionuclides bound to aqueous colloids is a determining factor in their migration from a radioactive waste repository. The cation exchangers Chelex-100, Dowex 50W×4, and Cellphos (cellulose phosphate) have been shown a promising tool for kinetic investigations. This study assesses the applicability of different exchange resins for Eu humate dissociation kinetics investigations. All resins were found to produce satisfactory results. A systematic study of parameters affecting the dissociation rates of Eu(III) humate complexes was performed. A set of purified humic substances was found to behave in the same way. However, unpurified Aldrich humic acid showed significant differences.

Original language	English
Pages (from-to)	3168-3174
Number of pages	6
Journal	Analytical Chemistry
Volume	75
Issue number	13
DOIs	https://doi.org/10.1021/ac020668r
Publication status	Published - 1 Jul 2003

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title = "Kinetic investigation of Eu(III)-humate interactions by ion exchange resins",

abstract = "The kinetic stability of radionuclides bound to aqueous colloids is a determining factor in their migration from a radioactive waste repository. The cation exchangers Chelex-100, Dowex 50W×4, and Cellphos (cellulose phosphate) have been shown a promising tool for kinetic investigations. This study assesses the applicability of different exchange resins for Eu humate dissociation kinetics investigations. All resins were found to produce satisfactory results. A systematic study of parameters affecting the dissociation rates of Eu(III) humate complexes was performed. A set of purified humic substances was found to behave in the same way. However, unpurified Aldrich humic acid showed significant differences.",

author = "Monsallier, {Jean Marc} and Wolfram Sch{\"u}ssler and Gunnar Buckau and Thomas Rabung and Kim, {Jae Il} and Dominic Jones and Rose Keepax and Nick Bryan",

year = "2003",

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doi = "10.1021/ac020668r",

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T1 - Kinetic investigation of Eu(III)-humate interactions by ion exchange resins

AU - Monsallier, Jean Marc

AU - Schüssler, Wolfram

AU - Buckau, Gunnar

AU - Rabung, Thomas

AU - Kim, Jae Il

AU - Jones, Dominic

AU - Keepax, Rose

AU - Bryan, Nick

PY - 2003/7/1

Y1 - 2003/7/1

N2 - The kinetic stability of radionuclides bound to aqueous colloids is a determining factor in their migration from a radioactive waste repository. The cation exchangers Chelex-100, Dowex 50W×4, and Cellphos (cellulose phosphate) have been shown a promising tool for kinetic investigations. This study assesses the applicability of different exchange resins for Eu humate dissociation kinetics investigations. All resins were found to produce satisfactory results. A systematic study of parameters affecting the dissociation rates of Eu(III) humate complexes was performed. A set of purified humic substances was found to behave in the same way. However, unpurified Aldrich humic acid showed significant differences.

AB - The kinetic stability of radionuclides bound to aqueous colloids is a determining factor in their migration from a radioactive waste repository. The cation exchangers Chelex-100, Dowex 50W×4, and Cellphos (cellulose phosphate) have been shown a promising tool for kinetic investigations. This study assesses the applicability of different exchange resins for Eu humate dissociation kinetics investigations. All resins were found to produce satisfactory results. A systematic study of parameters affecting the dissociation rates of Eu(III) humate complexes was performed. A set of purified humic substances was found to behave in the same way. However, unpurified Aldrich humic acid showed significant differences.

U2 - 10.1021/ac020668r

DO - 10.1021/ac020668r

M3 - Article

SN - 1520-6882

VL - 75

SP - 3168

EP - 3174

JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 13

ER -

Kinetic investigation of Eu(III)-humate interactions by ion exchange resins

Abstract

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