title: Determination of 63Ni and 59Ni in spent ion-exchange resin and activated charcoal from the IEA-R1 nuclear research reactor.
abstract: A radiochemical method has been adapted to determine (59)Ni and (63)Ni in samples of radioactive wastes from the water cleanup system of the IEA-R1 nuclear research reactor. The process includes extraction chromatographic resin with dimethylglyoxime (DMG) as a functional group. Activity concentrations of (59)Ni and (63)Ni were measured, respectively, by X-ray spectrometry and liquid scintillation counting, whereas the chemical yield was determined by ICP-OES. The average ratio of measured activity concentrations of (63)Ni and (59)Ni agree well with theory.
authors.affiliation: Laboratório de Poços de Caldas (LAPOC/CNEN-MG), Rodovia Poços de Caldas - Andradas km 13, CEP 37701-970, Poços de Caldas, MG, Brazil.
authors.forename: M H T
authors.initials: MH
authors.lastname: Taddei
authors.forename: J F
authors.initials: JF
authors.lastname: Macacini
authors.forename: R
authors.initials: R
authors.lastname: Vicente
authors.forename: J T
authors.initials: JT
authors.lastname: Marumo
authors.forename: S K
authors.initials: SK
authors.lastname: Sakata
authors.forename: L A A
authors.initials: LA
authors.lastname: Terremoto
mesh_terms: D001938:Brazil; D002606:Charcoal / Q000032:analysis / Q000737:chemistry*; D007475:Ion Exchange Resins / Q000032:analysis / Q000737:chemistry*; D008422:Materials Testing / Q000379:methods; D009532:Nickel / Q000032:analysis* / Q000737:chemistry; D011829:Radiation Dosage; D011850:Radioactive Waste / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis* / Q000737:chemistry; D011874:Radiometry / Q000379:methods*
chemical_list: D007475:Ion Exchange Resins; D011850:Radioactive Waste; D011868:Radioisotopes; D002606:Charcoal; D009532:Nickel