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The solvent extraction of carrier-free90Y from90Sr with crown ethers

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Abstract

A simple solvent extraction method has been developed for the separation of90Y from90Sr. Crown ether dissolved in chloroform was used as a selective reagent and organic picrate anion was chosen as a counter ion. The effect of various factors on the extraction separation of strontium and yttrium in the system have been studied. The extraction equilibrium constant of strontium logK ex=9.15 was obtained from the study of the distribution coefficient versus the crown ether concentration. The separation method was simple, resulted high purity (>99.9%) and quantitative yield, and took less than half an hour.

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Authors and Affiliations

  1. Institute of Nuclear Science, National Tsing Hua University, 30043, Hsinchu, Taiwan, R.O. China

    J. T. Chuang & J. G. Lo

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  1. J. T. Chuang
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  2. J. G. Lo
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Chuang, J.T., Lo, J.G. The solvent extraction of carrier-free90Y from90Sr with crown ethers. Journal of Radioanalytical and Nuclear Chemistry, Articles 189, 307–317 (1995). https://doi.org/10.1007/BF02042610

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  • DOI: https://doi.org/10.1007/BF02042610

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