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Abstract

An analytical procedure has been developed for the age determination of highly enriched uranium samples exploiting the mother/daughter pair {235}U/{231}Pa. Protactinium is separated from bulk uranium through highly selective sorption to silica gel and is subsequently quantified using alpha-spectrometry. The method has been validated using uranium standard reference materials of known ages. It affords decontamination factors exceeding 2.5 x 10{7}, overall recoveries in the range 80-85%, and a combined uncertainty below 5%.

Additional information

Authors: MORGENSTERN A, European Commission, Joint Research Centre, Institute for Transuranium Elements, Karlsruhe (DE);APOSTOLIDIS C, European Commission, Joint Research Centre, Institute for Transuranium Elements, Karlsruhe (DE);MAYER K, European Commission, Joint Research Centre, Institute for Transuranium Elements, Karlsruhe (DE)
Bibliographic Reference: An article published in: Analytical Chemistry, 2002, 74(21) Pp. 5513 - 5516
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1021/ac0203948
Record Number: 200215706 / Last updated on: 2003-01-09
Category: PUBLICATION
Original language: en
Available languages: en
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