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Evaluation of methods for the assay of neptunium and other long-lived actinides in environmental matrices

Hursthouse, A.S.; Baxter, M.S.; McKay, K.; Livens, F.R.. 1992 Evaluation of methods for the assay of neptunium and other long-lived actinides in environmental matrices. Journal of Radioanalytical and Nuclear Chemistry, Articles, 157 (2). 281-294. https://doi.org/10.1007/BF02047443

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Abstract/Summary

Inductively coupled plasma mass spectrometry (ICP-MS) and neutron activation analysis (NAA) have been investigated as alternatives to alpha-spectrometry for the low-level determination of237Np and other actinides in environmental matrices. ICP-MS in particular, has been shown here to offer suitable sensitivity, precision and accuracy compared to the other techniques, with considerably faster sample throughput relative to radiometric and activation approaches. Added advantages of ICP-MS are found to include the abilities to determine other long-lived actinides simultaneously and to quantify239Pu:240Pu ratios. The neutron activation analysis approach was found to be particularly prone to interference especially from uranium nuclides.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1007/BF02047443
Programmes: CEH Programmes pre-2009 publications > Other
CEH Sections/Science Areas: _ Pre-2000 sections
ISSN: 0236-5731
Additional Keywords: radioecology
NORA Subject Terms: Ecology and Environment
Date made live: 08 Mar 2013 14:15 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/21299

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