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Simultaneous substoichiometric determination of europium and terbium based on concentration dependent distribution

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Abstract

Methods for simultaneous determination of europium and terbium based on concentration dependent distribution is described. With these methods, the distribution ratios of elements are measured in two types of substoichiometric systems. Possibility of determining these elements simultaneously is investigated experimentally by using two pairs of substoichiometric complexans/excess extracting agents, such as DTPA/HTTA and EDTA/HTTA. Relative errors and precisions for simultaneous determination of the elements are less than 5%.

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  1. M. Katoh & T. Shigematsu

    Present address: NTT Electrical Communications Laboratories, Tokai, 319-11, Ibaraki-ken, (Japan)

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    1. M. Katoh
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    2. T. Shigematsu
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    Katoh, M., Shigematsu, T. Simultaneous substoichiometric determination of europium and terbium based on concentration dependent distribution. Journal of Radioanalytical and Nuclear Chemistry, Articles 116, 333–340 (1987). https://doi.org/10.1007/BF02035777

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    • DOI: https://doi.org/10.1007/BF02035777

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