title: Semi-automated potentiometric titration method for uranium characterization.
abstract: The manual version of the potentiometric titration method has been used for certification and characterization of uranium compounds. In order to reduce the analysis time and the influence of the analyst, a semi-automatic version of the method was developed in the Brazilian Nuclear Energy Commission. The method was applied with traceability assured by using a potassium dichromate primary standard. The combined standard uncertainty in determining the total concentration of uranium was around 0.01%, which is suitable for uranium characterization.
authors.affiliation: Comissão Nacional de Energia Nuclear (CNEN), Instituto de Radioproteção e Dosimetria (IRD), Avenida Salvador Allende s/n Recreio dos Bandeirantes, PO Box 37750, Rio de Janeiro, 22780-160 RJ, Brazil. barbara@ird.gov.br
authors.forename: B F G
authors.initials: BF
authors.lastname: Cristiano
authors.forename: J U
authors.initials: JU
authors.lastname: Delgado
authors.forename: J W S
authors.initials: JW
authors.lastname: da Silva
authors.forename: P D
authors.initials: PD
authors.lastname: de Barros
authors.forename: R M S
authors.initials: RM
authors.lastname: de Araújo
authors.forename: R T
authors.initials: RT
authors.lastname: Lopes