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    YANG Su-liang, SONG Zhi-jun, DING You-qian, YANG Zhi-hong, MAO Guo-shu, SHU Fu-jun, SUN Hong-qing, ZHANG Sheng-dong. A Method to Determine 99Tc in Soils Using TEVA Resin[J]. Journal of Nuclear and Radiochemistry, 2012, 34(4): 234-238.
    Citation: YANG Su-liang, SONG Zhi-jun, DING You-qian, YANG Zhi-hong, MAO Guo-shu, SHU Fu-jun, SUN Hong-qing, ZHANG Sheng-dong. A Method to Determine 99Tc in Soils Using TEVA Resin[J]. Journal of Nuclear and Radiochemistry, 2012, 34(4): 234-238.
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    A Method to Determine 99Tc in Soils Using TEVA Resin

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    • In this study, a chemical procedure for the routine determination of 99Tc in soils has been developed. The soil samples are leached with 1 mol/L nitric acid and separated using TEVA resin prior to liquid scintillation counting. Each sample was analyzed with and without a 99Tc spike to determine chemical recovery. The chemical recovery of the method is greater than 90%. With the quantity 10 g and counting time 1 h, the minimum detectable concentration is 3.5 mBq/g. The presence of 137Cs, 90Sr-90Y and natural uranium doesn’t interfere with the procedure.
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