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Updated: May 27, 2026

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
Published on: November 9, 2015
Determination of 241Pu in nuclear waste slurries: a comparative study using LSC and ICP-MS
M Jäggi1, S Röllin, J A Corcho Alvarado
1Department Logistics for Radiation Safety and Security, Radioanalytics, Villligen PSI, Switzerland. maya.jaeggi@psi.ch
Abstract:
(241)Pu was determined in slurry samples from a nuclear reactor decommissioning project at the Paul Scherrer Institute (Switzerland). To validate the results, the (241)Pu activities of five samples were determined by LSC (TriCarb and Quantulus) and ICP-MS, with each instrument at a different laboratory. In lack of certified reference materials for (241)Pu, the methods were further validated using the (241)Pu information values of two reference sediments (IAEA-300 and IAEA-384). Excellent agreement with the results was found between LSC and ICP-MS in the nuclear waste slurries and the reference sediments.
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