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Radiometric analysis based on redox substoichiometry I. Principles and application for the determination of tellurium

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Abstract

A radiometric method based on the redox substoichiometry has been developed for the determination of tellurium. The oxidation of tellurium(IV) to tellurium(VI) with potassium dichromate was employed as the substoichiometric reaction, followed by TBP (tributyl phosphate) extraction of the unreacted tellurium(IV) as the substoichiometric isolation. The oxidation of tellurium(IV) with dichromate under the substoichiometric conditions was incomplete. The chemical yield of tellurium(VI) produced by the oxidation of tellurium(IV) with dichromate was 83%. It was found that a tellurium content of 50 to 160 μg could be determined with an accuracy of ±1.3% by means of the comparison method.

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Authors and Affiliations

  1. School of Education, Shizuoka University, Oya, 836, 422, Shizuoka, Japan)

    J. Suzuki

  2. Radiochemistry Research Laboratory, School of Science, Shizuoka University, Oya, 836, 422, Shizuoka, Japan)

    H. Yoshioka, A. Ohya & T. Kambara

Authors
  1. J. Suzuki
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  2. H. Yoshioka
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  3. A. Ohya
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  4. T. Kambara
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Suzuki, J., Yoshioka, H., Ohya, A. et al. Radiometric analysis based on redox substoichiometry I. Principles and application for the determination of tellurium. Journal of Radioanalytical and Nuclear Chemistry, Articles 109, 101–107 (1987). https://doi.org/10.1007/BF02117527

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  • DOI: https://doi.org/10.1007/BF02117527

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