EPJ Nuclear Sci. Technol.
Volume 6, 2020
|Number of page(s)||6|
|Published online||30 March 2020|
Analysis of radionuclides in microsystem: application to the selective recovery of 55Fe by solvent extraction
Den–Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
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Received in final form: 20 December 2019
Accepted: 16 January 2020
Published online: 30 March 2020
The minimization of the sample quantities required by analytical laboratories, as well as the increase of the fastness of the analytical operations are emerging axes for improved radiochemical analyses related to D&D issues. Two microsystem-based protocols were developed for the selective recovery of 55Fe from radioactive samples by solvent extraction. Both protocols were tested on iron solutions in two different microchips. The yields of Fe extraction were compared with macroscale batch experiments. Better performances with more than 80% of iron extracted were obtained with the second protocol, which is based on a reactive transfer of the iron cation, and more suited to the use of microchannels and very low contact times. This study already demonstrate the high potential of microfluidic technology to improve analytical operations on D&D samples. This method will further be validated with radioactive samples.
© S. Rassou et al., published by EDP Sciences, 2020
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