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Updated: Mar 23, 2026
Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Method for rapid screening analysis of Sr-90 in edible plant samples collected near Fukushima, Japan
Hikaru Amano1, Hideaki Sakamoto1, Norikatsu Shiga1
1Iwaki Radiation Measuring Centre, Tarachine, 11-3 Hanabatake-cho, Onahama, Iwaki-city, Fukushima 971-8162, Japan.
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.
