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Determination of plutonium by solvent extraction—Liquid scintillation method

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Abstract

A combined solvent extraction—liquid scintillation method is suggested for the determination of plutonium. The quenching by twenty four extracting reagents was examined systematically, and the organo phosphorus extractants such as tributylphosphate (TBP), bis-(2-ethyhexyl) phosphoric acid (HDEHP), and tri-n-octylphosphineoxide (TOPO) were shown to be least quenching compared with amines and beta-diketones. Using TOPO, plutonium from 1 ng to 2 μg was determined within 5% of standard deviation, and the detection limit was 3·10−10 g of239Pu. The quenching by the different ions and the effects of the radioactive elements were also shown.

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  1. Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, (Japan)

    Y. Baba

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  1. Y. Baba
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Baba, Y. Determination of plutonium by solvent extraction—Liquid scintillation method. J. Radioanal. Chem. 79, 83–92 (1983). https://doi.org/10.1007/BF02518854

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  • DOI: https://doi.org/10.1007/BF02518854

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