Abstract

Time-resolved laser-induced spectrofluorimetry was used for the determination of curium complexed with thenoyltrifluoroacetone (TTA) and tri- n-octylphosphine oxide (TOPO) in a non-ionic micellar medium (Triton X-100). The results obtained were compared with those obtained in carbonate medium. With suitable complexing reagents concentration and pH, curium can be determined at concentrations down to 5 x 10 −13 M. This limit of detection corresponds to 0.1 ng 1 −1 or 2 x 10 7 molecules in the interaction volume. Limitations and improvements to the system in terms of limit of detection are discussed.

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