Journal article
Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program : GEOTRACES Intercal: Anthropogenic rads
Columbia University1
Autonomous University of Barcelona2
International Atomic Energy Agency3
Bundesamt für Seeschifffahrt und Hydrographie4
Korea Ocean Research and Development Institute5
Center for Nuclear Technologies, Technical University of Denmark6
Radioecology and Tracer Studies, Center for Nuclear Technologies, Technical University of Denmark7
As part of the GEOTRACES Program, six laboratories participated in an intercalibration exercise on several anthropogenic radionuclides of interest. The effort was successful for 239,240Pu activity, 240Pu/239Pu isotope ratio, and 137Cs activity measured in filtered seawater samples from the Bermuda Atlantic Time Series station (BATS) and a site on the continental slope of the Northeastern U.S.
A limited number of analyses were reported for 237Np, 241Am, 90Sr, and 238Pu in filtered seawater. Intercalibration of any of the isotopes of interest in filtered particulate matter was unsuccessful due to insufficient size of the samples distributed. Methods used were based on traditional radio-counting techniques and inductively coupled plasma mass spectrometry (ICP-MS).
Although the majority of analyses were performed on samples ≥ 60 L, one lab demonstrated the ability to analyze several of the anthropogenic radionuclides on 10-20 L sample volumes using ICP-MS.
Language: | English |
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Year: | 2012 |
Pages: | 590-607 |
ISSN: | 15415856 |
Types: | Journal article |
DOI: | 10.4319/lom.2012.10.590 |
ORCIDs: | Nielsen, Sven Poul |