Abstract
In this paper, we propose an online dilution system for the rapid quantification of radioactive strontium-90 (90Sr) with inductively coupled plasma mass spectrometry coupled solid-phase extraction and O2 dynamic reaction (cascade ICP-MS). The proposed system automatically provides a higher dilution ratio, which is at most 3.3 ± 0.2-times the ratio obtained by the previous method, without increasing the analysis time (<15 min). A detection limit of 2.7 Bq/kg wet (0.54 pg/kg wet) was achieved. The recovery test results were consistent with two different spiked values.
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Acknowledgments
We acknowledge Mr. Kazuki Iijima and Mr. Kenso Fujiwara from Japan Atomic Energy Agency for providing insightful comments and suggestions. Additionally, we acknowledge members of Japan Nuclear Fuel Chemical Analysis Co., Ltd. (Aomori, Japan) for their help.
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Yanagisawa, K., Matsueda, M., Furukawa, M. et al. Development of Online Dilution System for Quantification of 90Sr Using Automatic Solid-phase Extraction Inductively Coupled Plasma Mass Spectrometry. ANAL. SCI. 36, 1131–1135 (2020). https://doi.org/10.2116/analsci.20N009
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DOI: https://doi.org/10.2116/analsci.20N009