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DETERMINATION OF 237NP AND PU ISOTOPES IN LARGE SOIL SAMPLES BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators
United States. Department of Energy. Savannah River Site, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
A new method for the determination of ²³⁷Np and Pu isotopes in large soil samples has been developed that provides enhanced uranium removal to facilitate assay by inductively coupled plasma mass spectrometry (ICP-MS). This method allows rapid preconcentration and separation of plutonium and neptunium in large soil samples for the measurement of ²³⁷Np and Pu isotopes by ICP-MS. ²³⁸U can interfere with ²³⁹Pu measurement by ICP-MS as ²³⁸UH⁺ mass overlap and ²³⁷Np via ²³⁸U peak tailing. The method provides enhanced removal of uranium by separating Pu and Np initially on TEVA Resin, then transferring Pu to DGA resin for additional purification. The decontamination factor for removal of uranium from plutonium for this method is greater than 1 x 10⁶. Alpha spectrometry can also be applied so that the shorter-lived ²³⁸Pu isotope can be measured successfully. ²³⁹Pu, ²⁴²Pu and ²³⁷Np were measured by ICP-MS, while ²³⁶Pu and ²³⁸Pu were measured by alpha spectrometry.
Report Numbers
E 1.99:srns-sti-2010-00456
srns-sti-2010-00456
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Note
Published through SciTech Connect.
07/26/2010.
"srns-sti-2010-00456"
Analytica Chimica Acta ISSN 0003-2670 FT
Maxwell, S.
Funding Information
DE-AC09-08SR22470
View MARC record | catkey: 14129576