Ridhita B. Borhan, Diana Thompson, Erin R. Bertelsen
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Gamma irradiation effects on Eu(III) uptake by HDEHP-functionalized support materials
Four chromatographic supports were functionalized with bis-(2-ethylhexyl) phosphoric acid (HDEHP) and examined for radiation stability when used for f-element separations after exposure to high levels of ionizing gamma radiation. Changes in Eu(III) partitioning were evaluated and compared to an analogous solvent extraction system using HDEHP in n-dodecane. The solvent extraction system showed an increase in Eu(III) uptake with increasing γ irradiation dose to the solvent in the presence of nitric acid. The Eu(III) distribution profiles indicate that the functionalized chromatographic support materials are less affected by γ irradiation, when exposed in a radiation environment of up to 2.5 MGy in the presence of nitric acid.
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An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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