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Feasibility study of an analytical method for detecting 90Sr in soil using DGA resin and Sr resin

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Abstract

This study investigated an analytical method for detecting 90Sr in soil samples for the routine monitoring of environmental radioactivity. Mineral acid leaching and fusion methods were first used to digest the soil sample, and the analytical results were compared. DGA resin was employed to separate 90Y, being a daughter of 90Sr. Then, 90Y was analyzed by liquid scintillation counter (LSC). These analytical results were compared with those obtained using Sr resin, which is a well-known, simple and reliable separation method. With the DGA resin approach a minimum detectable activity of ~0.28 Bq kg−1 was detected in a 50 g sample, with 180 min of counting time, 70% recovery and ~97% counting efficiency using a LSC.

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea Government (MSIP) (No. 2017M2A8A5015143).

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Authors and Affiliations

  1. Nuclear Emergency and Environmental Protection Division, Korea Atomic Energy Research Institute, 989-111 Deadeok-daero, Yuseong-gu, Daejeon, 34057, Korea

    Yonnhee Jung, Hyuncheol Kim, Jong-Myoung Lim & Kun Ho Chung

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  1. Yonnhee Jung
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  2. Hyuncheol Kim
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  3. Jong-Myoung Lim
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  4. Kun Ho Chung
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Correspondence to Hyuncheol Kim.

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Jung, Y., Kim, H., Lim, JM. et al. Feasibility study of an analytical method for detecting 90Sr in soil using DGA resin and Sr resin. J Radioanal Nucl Chem 313, 401–408 (2017). https://doi.org/10.1007/s10967-017-5328-5

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  • DOI: https://doi.org/10.1007/s10967-017-5328-5

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