Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10559700 | Talanta | 2011 | 7 Pages |
Abstract
This paper deals with the study of uranium-colloid interactions in a carbonated soil. The work is focused on the immediately available fraction obtained after a leaching process, according to a normalized batch method. In order to characterize the different colloidal carriers, Asymmetrical Flow Field-Flow Fractionation (As-Fl-FFF) coupled to different detectors (UV, Multi Angle Laser Light Scattering (MALLS) and Inductively coupled Plasma-Mass Spectrometry (ICP-MS)) was used. The colloidal carriers are mainly inorganic particles (carbonated particles and clays) mixed with organic substances. Furthermore, dissolved and colloidal uranium species in the leaching solutions were monitored by Capillary Electrophoresis (CE) coupled to ICP-MS, in order to investigate the uranium/colloids interactions. According to the first results, uranium fate in this specific soil is controlled by sorption/desorption phenomena, strongly pH dependent.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Céline Claveranne-Lamolère, Jean Aupiais, Gaëtane Lespes, Jérôme Frayret, Eric Pili, Fabien Pointurier, Martine Potin-Gautier,