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Report No.

Study on highly emissive probes with various chelating moieties for analysis of actinides by capillary electrophoresis with laser-induced fluorescent detection

Haraga, Tomoko   ; Nakano, Yuta*; Shibukawa, Masami*; Saito, Shingo*; Kameo, Yutaka ; Takahashi, Kuniaki 

For the safe disposal of radioactive wastes, a simple and highly sensitive analytical method for actinides in waste samples is required. In this study, a capillary electrophoresis with laser induced fluorescent detection was examined for analysis of neptunium ($$^{237}$$Np) and americium ($$^{243}$$Am). Applying a pre-capillary complexation technique using several new emissive complexing probes with various chelating moieties, the highly sensitive fluorescent detection of Np and Am was succeeded. In addition, the separation of Np and Am was achieved for a multidentate probe. The detection limit was obtained at mid-ppt levels.



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