This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1039/b503011k in citations.
Determination of 226Ra at ultratrace level in mineral water samples by sector field inductively coupled plasma mass spectrometry
Determination of 226Ra at ultratrace level in mineral water samples by sector field inductively coupled plasma mass spectrometry
An analytical procedure has been proposed for the determination of (226)Ra at the low femtogram per ml concentration level in mineral water samples using double focusing sector field ICP-MS (ICP-SFMS). For the pre-concentration and separation of radium from the matrix elements in water a tandem of a...
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Personal Name(s): | Zoriy, M. V. |
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Varga, Z. / Pickhardt, C. / Ostapczuk, P. / Hille, R. / Halicz, L. / Segal, I. / Becker, J. S. | |
Contributing Institute: |
Abteilung Sicherheit und Strahlenschutz; S Zentralabteilung für Chemische Analysen; ZCH |
Published in: | Journal of environmental monitoring, 7 (2005) 5, S. 514 - 518 |
Imprint: |
London
Royal Society of Chemistry
2005
|
Physical Description: |
514 - 518 |
PubMed ID: |
15877175 |
DOI: |
10.1039/b503011k |
Document Type: |
Journal Article |
Research Program: |
Neurowissenschaften |
Series Title: |
Journal of Environmental Monitoring
7 |
Subject (ZB): | |
Publikationsportal JuSER |
An analytical procedure has been proposed for the determination of (226)Ra at the low femtogram per ml concentration level in mineral water samples using double focusing sector field ICP-MS (ICP-SFMS). For the pre-concentration and separation of radium from the matrix elements in water a tandem of a laboratory-prepared filter, based on MnO(2), and Eichrom "Sr-specific" resin was used. The recovery of the method was determined to be 70.5%. The limit of detection for (226)Ra determination was 0.02 fg ml(-1), including a pre-concentration factor of 10. In addition, uranium concentration and uranium isotope ratios were measured by ICP-SFMS. In several mineral water samples with a relatively high uranium content, (226)Ra concentrations were found between 0.7-15 fg ml(-1). The effective dose of the contribution was calculated using the radionuclide concentration and dose conversion factors from the World Health Organization, WHO (1993). Assuming a mineral water consumption of 2 l d(-1), a slightly higher calculated dose than the suggested limit for drinking water (0.1 mSv y(-1)) was found in some samples. |