Time-resolved laser-induced fluorescence spectrometry (TRLFS) applied to uranyl complexation studies

The identification of uranyl species formed in solution in the presence of ligands or other radionuclides is incomplete. In order to fill this gap, suitable analytical and spectroscopic tools have to be used and technical limitations such as high detection limits, interferences between species, lack of sensitivity, etc.. have to be overcome. Time-resolved laser-induced fluorescence spectrometry (TRLFS) is an already broadly used technique for uranyl species characterization. Using a conventional set-up (LASER Nd:YAG, λ = 266 nm; monochromator, CCD detector), we have investigated new chemical and physical parameters influencing the UO22+/ligand complexation behavior. (orig.)