Colloidal mobilization from soil and transport of uranium in (sub)-surface waters

Environmental Science and Pollution Research International
Stéphanie HarguindeguyGaëtane Lespes

Abstract

An analytical methodology was developed to characterize the colloidal distribution of trace elements of interest in environmental waters sampled in a same site and enables the different colloidal distributions from waters to be compared. The purpose was to provide consistent information related to the origin and nature of colloids responsible for the transport of trace element(s). The work was motivated by the observed enhanced mobility of uranium in soil. The colloidal size continuum was investigated by a multi-technique approach involving asymmetric flow field-flow fractionation (AF4) coupled with ultraviolet spectroscopy (UV), multi angle light scattering (MALS), and atomic mass spectrometry (ICPMS). To take into consideration the size and shape variability specific to each sample, the size distributions were established from the gyration radii measured from MALS, also considering the size information from standard nanospheres fractionated by AF4. A new parameter called "shape index" was proposed. It expresses the difference in hydrodynamic behavior between analytes and spherical particles taken as reference. Under AF4 diffusion conditions, it can be considered as an evaluator of the deviation from the sphericity of the frac...Continue Reading

References

Feb 1, 1997·Journal of Colloid and Interface Science·R Beckett, J C Giddings
Feb 10, 2004·Applied and Environmental Microbiology·Cheryl M DaviesNicholas J Ashbolt
Oct 21, 2006·Journal of Contaminant Hydrology·Jens MibusGert Bernhard
Sep 22, 2009·Journal of Chromatography. a·Céline Claveranne-LamolèreMartine Potin-Gautier
Feb 25, 2010·The Science of the Total Environment·P CrançonL Charlet
May 11, 2010·Journal of Contaminant Hydrology·Jeffrey Lewis, Jan Sjöstrom
Sep 27, 2013·Analytical and Bioanalytical Chemistry·Hind El HadriGaëtane Lespes
Mar 20, 2018·Environmental Science and Pollution Research International·Stéphane FaucherGaëtane Lespes

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Citations

Feb 24, 2021·Environmental Science and Pollution Research International·Stéphane FaucherGaëtane Lespes
May 23, 2021·Environmental Science and Pollution Research International·Daniel A CamposAllan Philippe
Jul 30, 2019·Environmental Science & Technology·Gabrielle DubletRizlan Bernier-Latmani
Sep 15, 2021·Journal of Separation Science·Gaëtane Lespes, Valentin De Carsalade Du Pont

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