Abstract
A cation-exchange chromatographic method was utilized to isolate strontium. The interference of recovery yield, calcium and magnesium, and the interference of beta spectrum, yttrium-90, were eluted from the AG 50 W-X8 resin (NH4+ form) by 0.02 mol L−1 DCTA at pH 6. Strontium successively was eluted with 6 mol L−1 HNO3. After the isolation procedure, the 2-windows method was applied to analyze 90Sr measuring via LSC. The activities of 90Sr obtained from the 2-windows method were in good agreement with recommended calculation method, ISO 18589-5:2009, and the average relative bias of the two methods was about 5%.
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This work was funded by the National Science Foundation of Anhui Province (Grant No. 2008085AMA24). The authors have no relevant financial or non-financial interests to disclose.
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Xu, P., Ding, C., Yu, G. et al. Determination of 90Sr in different matrices via ion-exchange chromatography and LSC. J Radioanal Nucl Chem 331, 3269–3274 (2022). https://doi.org/10.1007/s10967-022-08401-2
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DOI: https://doi.org/10.1007/s10967-022-08401-2