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Development of online dilution system for quantification of $$^{90}$$Sr using automatic solid-phase extraction inductively coupled plasma mass spectrometry

Yanagisawa, Kayo*; Matsueda, Makoto ; Furukawa, Makoto*; Takagai, Yoshitaka*

In this paper, we propose an online water infusion system for rapid quantification of radioactive strontium-90 ($$^{90}$$Sr) with inductively coupled plasma mass spectrometry coupled solid-phase extraction and O$$_{2}$$ dynamic reaction (cascade ICP-MS). The proposed system automatically provides a higher dilution ratio, which is at most 3.3 times the ratio obtained by the previous method, without increasing the analysis time (within 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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Category:Chemistry, Analytical

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