Method for rapid screening analysis of Sr-90 in edible plant samples collected near Fukushima, Japan
2016
Abstract A screening method for measuring 90 Sr in edible plant samples by focusing on 90 Y in equilibrium with 90 Sr is reported. 90 Y was extracted from samples with acid, co-precipitated with iron hydroxide, and precipitated with oxalic acid. The dissolved oxalate precipitate was loaded on an extraction chromatography resin, and the 90 Y-enriched eluate was analyzed by Cherenkov counting with a TDCR liquid scintillation counter. 90 Sr ( 90 Y) concentration was determined in plant samples collected near the damaged Fukushima Daiichi Nuclear Power Plants with this method.
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