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Published on: June 6, 2018
Semi-automatic version of the potentiometric titration method for characterization of uranium compounds
Bárbara F G Cristiano1, José Ubiratan Delgado, José Wanderley S da Silva
1Comissão Nacional de Energia Nuclear (CNEN), Instituto de Radioproteção e Dosimetria (IRD), Avenida Salvador Allende, s/n Recreio dos Bandeirantes 22780-160, Rio de Janeiro, RJ, Brasil. barbara@ird.gov.br
Abstract:
The potentiometric titration method was used for characterization of uranium compounds to be applied in intercomparison programs. The method is applied with traceability assured using a potassium dichromate primary standard. A semi-automatic version was developed to reduce the analysis time and the operator variation. The standard uncertainty in determining the total concentration of uranium was around 0.01%, which is suitable for uranium characterization and compatible with those obtained by manual techniques.
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