Speciation of Eu(III) in an anion exchange separation system with LiCl-HO/alcohol mixed media by time-resolved laser-induced fluorescence spectroscopy

Arisaka, Makoto*; Kimura, Takaumi; Suganuma, Hideo*; Yoshida, Zenko

Journal of Radioanalytical and Nuclear Chemistry, 255(2), p.385 - 389, 2003/02

https://doi.org/10.1023/A:1022529525952

no abstracts in English

Direct observation of Cm(III)-fulvate species on fulvic acid-montmorillonite hybrid by laser-induced fluorescence spectroscopy

Takahashi, Yoshio*; Kimura, Takaumi; Minai, Yoshitaka*

Geochimica et Cosmochimica Acta, 66(1), p.1 - 12, 2002/01

https://doi.org/10.1016/S0016-7037(01)00748-7

no abstracts in English

Thermodynamic Date for Predicting Concentrations of Pu(III), Am(III), and Cm(III) in Geologic Environments

Rai, D.*; Rao, L.*; Weger, H. T.*; GREGORY R.CHOPPI*; Yui, Mikazu

JNC TN8400 99-010, 95 Pages, 1999/01

JNC-TN8400-99-010.pdf:3.88MB

This report provides thermodynamic data for predicting concentrations of Pu(III), Am(III), and Cm(III) in geologic environments, and contributes to an integration of the JNC chemical thermodynamic database, JNC-TDB (previously PNC-TDB), for the performance analysis of geological isolation system for high-level radioactive wastes. Thermodynamic data for the formation of complexes or compounds with hydroxide, chloride, fluoride, carbonate, nitrate, sulfate and phosphate are discussed in this report. Where data for specific actinide(III) species are lacking, the data were selected based on chemical analogy to other trivalent actinides. In this study, the Pitzer ion-interaction model is mainly used to extrapolate thermodynamic constants to zero ionic strength at 25C.

Speciation of actinides in aqueous solution by time-resolved laser-induced fluorescence spectroscopy(TRLFS)

Kimura, Takaumi; ; G.Meinrath*; Yoshida, Zenko; Choppin, G. R.*

JAERI-Conf 95-005, Vol.2, 0, p.473 - 485, 1995/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-95-005.pdf

no abstracts in English