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Updated: Feb 26, 2026

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
Published on: November 9, 2015
On the sequential separation and quantification of 237Np, 241Am, thorium, plutonium, and uranium isotopes in
M Vasile1, K Jacobs1, M Bruggeman1
1Low-level Radioactivity Measurements-SCK·CEN, Boeretang 200, B-2400 Mol, Belgium.
Abstract:
The implementation of the one-pass-through separation technique using two stacked chromatography columns of TEVA - TRU resins for the separation of 237Np, 241Am, thorium, plutonium and uranium from environmental and urine samples was investigated. The sequential separation technique proved to be successful and gave similar results to those obtained when using individual separations. The analysis time was considerably improved. The amount of chemical waste was also reduced by 50% and the use of HClO4 was avoided. The technique of ICP-MS was also investigated as a complementary technique to alpha-spectrometry.

