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<p>In this study, NaBiO<sub>3</sub>-Celite column was used to separate Cm from Am based on the oxidition and adsorption ability of NaBiO<sub>3</sub>. However, the dissolved Bi affects α-spectral measurement of Am and Cm. So, DGA resin was used to remove Bi based on the adsorption properties in HNO<sub>3</sub> and HCl mediums. Finally, the two-stage chromatographic separation method was developed and achieved high recoveries (&gt; 80% for both Am and Cm) with high decontamination factors (DF) (&gt; 4 × 10<sup>4</sup> of <i>DF</i><sub>Cm/Am</sub>, 2 × 10<sup>2</sup> of <i>DF</i><sub>Am/Cm</sub>). It was promising as the final purification step prior to the α analysis of Am and Cm.</p>

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Two-stage chromatographic separation of americium and curium using NaBiO3-Celite and DGA column prior to α-spectrometry analysis

  • 期刊论文

  • 发表日期：

    2025年8月28日

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  • Yufeng Wang,
  • Jinlong Fan,
  • Mao Fan,
  • Yihua Dai,
  • Qingjiang Yu,
  • Xukang Zhao,
  • Xiufang Zhai,
  • Yaowen Hu,
  • Tai Kang,
  • Zhichao Liu,
  • Zhiming Li

摘要

In this study, NaBiO3-Celite column was used to separate Cm from Am based on the oxidition and adsorption ability of NaBiO3. However, the dissolved Bi affects α-spectral measurement of Am and Cm. So, DGA resin was used to remove Bi based on the adsorption properties in HNO3 and HCl mediums. Finally, the two-stage chromatographic separation method was developed and achieved high recoveries (> 80% for both Am and Cm) with high decontamination factors (DF) (> 4 × 104 of DFCm/Am, 2 × 102 of DFAm/Cm). It was promising as the final purification step prior to the α analysis of Am and Cm.