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Sato, Yoshiyuki; Saito, Shingo*; Haraga, Tomoko; Ito, Yuki*; Kameo, Yutaka; Takahashi, Kuniaki; Shibukawa, Masami*
no journal, ,
JP, 2012-034711 
Patent publication (In Japanese)
In this research, capillary electrophoresis-laser induced fluorescence detecting method (CE-LIF) as a simple and rapid analytical method for uranyl ion was studied. In order to detect uranyl ion by CE-LIF, the novel fluorescent probe whose chelating group was phenanthroline dicarboxylic acid, was synthesized. This planer tetradenate probe forms a stable complex with uranyl ion. And this complex had strong fluorescence to suppress the quenching of the ligand-centered emission. This complex was applied for CE-LIF and investigated in order to separate from other metal ions. As a result, uranyl ion formed an inert complex and was detected successfully. Furthermore an uranyl ion was separated from coexistence metal ions, such as Ca
, Fe
, Al and lanthanide ions, and a lower detection limit of tens ppt revel for uranyl ion was successfully.
Sato, Yoshiyuki; Haraga, Tomoko; Nakano, Yuta*; Ouchi, Kazuki; Ito, Yuki*; Ishimori, Kenichiro; Takahashi, Kuniaki; Saito, Shingo*
no journal, ,
For the development of a simple and rapid analytical method for actinides (Thorium, Uranium, Neptunium, Plutonium, Americium and Curium) in radioactive wastes, capillary electrophoresis-laser -induced fluorescence detecting method (CE-LIF) was studied. In this research, newly synthesized eight probes whose chelating group were acyclic or macrocyclic were applied to the detection of actinides using CE-LIF. As a result, Thorium and Uranium were successfully detected and separated from other actinide ions applied to octadenate acyclic probe and tetradenate planer probe, respectively. Neptunium was detected using hexadenate or heptadenate probes whose chelating groups were acyclic or macrocyclic. Plutonium was detected applied to hexadenate or octadenate acyclic probes. Americium and Curium were detected applied to seven probes except for tetradenate planer probe.