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Capillary electrophoresis determination of nitrate and nitrite in high-salt perchlorate solutions for the UC dissolution study

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Abstract

The capillary electrophoresis method with direct UV detection is proposed for the determination of nitrite and nitrate in high-salt perchlorate solutions issued from uranium carbide dissolution. The isotachophoretic sample stacking was used to compensate for the perchlorate matrix interference. Simple electrolyte composed of 120 mM formiate buffer, pH 3.8 enabled the nitrate and nitrite determination in the presence of up to 1000-fold excess of perchlorate with 2 µM and 4 µM detection limits for nitrate and nitrite, respectively. The proposed method was applied to the determination of nitrate and nitrite in high-salt non-irradiated uranium carbide dissolution samples.

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Acknowledgement

The authors express their sincere thanks to Mr Ph. Moisy of CEA Marcoule for his cooperation.

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Authors and Affiliations

  1. Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky prospect, 119991, Moscow, Russia

    N. Budanova & A. Maslennikov

  2. Institut de Physique Nucleaire, Orsay, France

    B. Fourest

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  1. N. Budanova
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  2. B. Fourest
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  3. A. Maslennikov
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Correspondence to N. Budanova.

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Budanova, N., Fourest, B. & Maslennikov, A. Capillary electrophoresis determination of nitrate and nitrite in high-salt perchlorate solutions for the UC dissolution study. J Radioanal Nucl Chem 281, 597–602 (2009). https://doi.org/10.1007/s10967-009-0002-1

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  • DOI: https://doi.org/10.1007/s10967-009-0002-1

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