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Open AccessArticle

An Automated SeaFAST ICP-DRC-MS Method for the Determination of 90Sr in Spent Nuclear Fuel Leachates

1
European Commission, Joint Research Centre, Directorate for Nuclear Safety and Security, D-76125 Karlsruhe, Germany
2
Karlsruhe Institute for Technology, Institute for Nuclear Waste Disposal, D-76021 Karlsruhe, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Pawel Koscielniak
Molecules 2020, 25(6), 1429; https://doi.org/10.3390/molecules25061429 (registering DOI)
Received: 26 February 2020 / Revised: 17 March 2020 / Accepted: 18 March 2020 / Published: 21 March 2020
(This article belongs to the Special Issue Modern Flow Analysis)
To reduce uncertainties in determining the source term and evolving condition of spent nuclear fuel is fundamental to the safety assessment. ß-emitting nuclides pose a challenging task for reliable, quantitative determination because both radiometric and mass spectrometric methodologies require prior chemical purification for the removal of interfering activity and isobars, respectively. A method for the determination of 90Sr at trace levels in nuclear spent fuel leachate samples without sophisticated and time-consuming procedures has been established. The analytical approach uses a commercially available automated pre-concentration device (SeaFAST) coupled to an ICP-DRC-MS. The method shows good performances with regard to reproducibility, precision, and LOD reducing the total time of analysis for each sample to 12.5 min. The comparison between the developed method and the classical radiochemical method shows a good agreement when taking into account the associated uncertainties. View Full-Text
Keywords: nuclear waste; spent nuclear fuel; ß-emitting nuclides; 90Sr; flow injection; ICP-DRC-MS nuclear waste; spent nuclear fuel; ß-emitting nuclides; 90Sr; flow injection; ICP-DRC-MS
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Vicente Vilas, V.; Millet, S.; Sandow, M.; Iglesias Pérez, L.; Serrano-Purroy, D.; Van Winckel, S.; Aldave de las Heras, L. An Automated SeaFAST ICP-DRC-MS Method for the Determination of 90Sr in Spent Nuclear Fuel Leachates. Molecules 2020, 25, 1429.

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