Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program
Autor: | Elena Chamizo, Joan-Albert Sanchez-Cabeza, Timothy C. Kenna, Jan Scholten, José Luis Mas, P. Camara-Mor, Herrmann J, Pere Masqué, Mats Eriksson, Patric Lindahl, Isabelle Levy, Janine Gastaud, Gi Hoon Hong, Sven Poul Nielsen |
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Rok vydání: | 2012 |
Předmět: |
Anthropogenic radionuclides
Isotope Geotraces 010401 analytical chemistry Ocean Engineering 010501 environmental sciences Particulates 01 natural sciences 0104 chemical sciences 13. Climate action Environmental chemistry Environmental science Seawater Inductively coupled plasma mass spectrometry 0105 earth and related environmental sciences |
Zdroj: | Limnology and Oceanography: Methods. 10:590-607 |
ISSN: | 1541-5856 |
Popis: | 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. |
Databáze: | OpenAIRE |
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