title: Separation and spectrophotometric determination of uranium(VI) by extraction with tri-n-octylphosphine oxide and benzophenone.
abstract: Uranium(VI) is separated by extraction from nitric acid medium into a molten mixture of tri-n-octylphosphine oxide and benzophenone at about 50 degrees . The organic phase solidifies on cooling and is separated and dissolved in ethanol. The uranium(VI) in this solution is then determined spectrophotometrically with 1-(2-pyridylazo)-2-naphthol.
authors.affiliation: Department of Chemistry, Okayama College of Science, 1-1, Ridai-chō, Okayama-shi 700, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Shigetomi
authors.forename: T
authors.initials: T
authors.lastname: Kojima
authors.forename: H
authors.initials: H
authors.lastname: Kamba