title: Use of TEVA resin for the determination of U isotopes in water samples by Q-ICP-MS.
abstract: In order to measure uranium isotopic mass ratio in natural water samples by Q-ICP-MS, an application of TEVA resin (Eichrom) was studied to separate and concentrate U. After being evaporated to dryness, the sample residue was dissolved in 6 M HCl, then, TEVA extraction was carried out. U extracted on the resin could be removed with 20 ml of 1 M HCl (U fraction) when Fe content was lower than 2 mg. U recovery in U fraction showed a negative correlation with Fe content in the samples.
authors.affiliation: Environmental and Toxicological Sciences Research Group, National Institute of Radiological Sciences, Anagawa 4-9-1, Inage-ku, Chiba-shi, Chiba 263-8555, Japan. k_tagami@nirs.go.jp
authors.forename: K
authors.initials: K
authors.lastname: Tagami
authors.forename: S
authors.initials: S
authors.lastname: Uchida
mesh_terms: D000837:Anion Exchange Resins / Q000737:chemistry*; D002852:Chromatography, Ion Exchange / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods*; D011868:Radioisotopes / Q000032:analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D000837:Anion Exchange Resins; D011868:Radioisotopes; D014875:Water Pollutants, Radioactive; D014501:Uranium