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Issue 11, 2002
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Determination of plutonium isotopes and neptunium-237 in environmental samples by inductively coupled plasma mass spectrometry with total sample dissolution

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Abstract

A method for the separation and purification of environmental levels of plutonium and neptunium from totally digested sediment samples and determination of isotopic abundances of 237Np, 239Pu, 240Pu and 241Pu by ICP-MS has been developed. Data from the analysis of standard reference materials (SRM-4350B, IAEA-135, and IAEA-384), selected sediments collected from the Ob River, Siberia, and laboratory intercomparison analyses conducted with scientists at DOE's Environmental Measurements Laboratory using TIMS are presented and discussed. Chemical recoveries for Pu and Np are 90 and 70 percent, respectively. Measurement precision ranged between 1 and 5 percent for all isotopes except 241Pu, for which it was 10–15 percent. The lower limit of detection was 0.5 fg g−1 for all isotopes of interest.

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Article information


Submitted
23 May 2002
Accepted
25 Sep 2002
First published
07 Oct 2002

J. Anal. At. Spectrom., 2002,17, 1471-1479
Article type
Paper

Determination of plutonium isotopes and neptunium-237 in environmental samples by inductively coupled plasma mass spectrometry with total sample dissolution

T. C. Kenna, J. Anal. At. Spectrom., 2002, 17, 1471
DOI: 10.1039/B205001C

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