title: Quantitative analysis of uranium in aqueous solutions using a semiconductor laser-based spectroscopic method.
abstract: A simple analytical method based on the simultaneous measurement of the luminescence of hexavalent uranium ions (U(VI)) and the Raman scattering of water, was investigated for determining the concentration of U(VI) in aqueous solutions. Both spectra were measured using a cw semiconductor laser beam at a center wavelength of 405 nm. The empirical calibration curve for the quantitative analysis of U(VI) was obtained by measuring the ratio of the luminescence intensity of U(VI) at 519 nm to the Raman scattering intensity of water at 469 nm. The limit of detection (LOD) in the parts per billion range and a dynamic range from the LOD up to several hundred parts per million were achieved. The concentration of uranium in groundwater determined by this method is in good agreement with the results determined by kinetic phosphorescence analysis and inductively coupled plasma mass spectrometry.
authors.affiliation: Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, Yuseong-gu, Daejeon 305-600, Republic of Korea.
authors.forename: Hye-Ryun
authors.initials: HR
authors.lastname: Cho
authors.forename: Euo Chang
authors.initials: EC
authors.lastname: Jung
authors.forename: Wansik
authors.initials: W
authors.lastname: Cha
authors.forename: Kyuseok
authors.initials: K
authors.lastname: Song
mesh_terms: D007834:Lasers; D012666:Semiconductors; D012996:Solutions; D013059:Spectrum Analysis, Raman / Q000295:instrumentation; D014501:Uranium / Q000032:analysis*; D014867:Water / Q000737:chemistry
chemical_list: D012996:Solutions; D014867:Water; D014501:Uranium