Novel DGT Configurations for the Assessment of Bioavailable Plutonium, Americium, and Uranium in Marine and Freshwater Environments.

Details

Serval ID
serval:BIB_9641298D7A8E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Novel DGT Configurations for the Assessment of Bioavailable Plutonium, Americium, and Uranium in Marine and Freshwater Environments.
Journal
Analytical chemistry
Author(s)
Chaplin J.D., Warwick P.E., Cundy A.B., Bochud F., Froidevaux P.
ISSN
1520-6882 (Electronic)
ISSN-L
0003-2700
Publication state
Published
Issued date
07/09/2021
Peer-reviewed
Oui
Volume
93
Number
35
Pages
11937-11945
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Plutonium, americium, and uranium contribute to the radioactive contamination of the environment and are risk factors for elevated radiation exposure via ingestion through food or water. Due to the significant environmental inventory of these radioelements, a sampling method to accurately monitor their bioavailable concentrations in natural waters is necessary, especially since physicochemical factors can cause significant temporal fluctuations in their waterborne concentrations. To this end, we engineered novel diffusive gradients in thin-film (DGT) configurations using resin gels, which are selective for UO <sub>2</sub> <sup>2+</sup> , Pu(IV + V), and Am(III) among an excess of extraneous cations. In this work, we also report an improved synthesis of our in-house ion-imprinted polymer resin, which we used to manufacture a resin gel to capture Am(III). The effective diffusion coefficients of Pu, Am, and U in agarose cross-linked polyacrylamide were determined in freshwater and seawater simulants and in natural seawater, to calibrate these configurations for environmental deployments.
Keywords
Americium/analysis, Diffusion, Fresh Water, Plutonium/analysis, Uranium/analysis
Pubmed
Web of science
Open Access
Yes
Create date
14/09/2021 13:12
Last modification date
08/03/2022 7:34
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