Speciation From Photon To Ion Detection
EVALUATION OF SPECIATION TECHNOLOGY, PROCEEDINGS(2001)
Abstract
New analytical techniques allowing to perform speciation in the framework of the nuclear fuel cycle are more and more needed. Among them, several laser-based analytical techniques present several advantages (non intrusive). Hence, Thermal Lensing (TL)/Photoacoustic (LIPAS), Time Resolved selective, sensitive Laser-Induced Fluorescence (TRLIF) have been used for actinides/lanthanides interaction and speciation studies in inorganic and organic matrices, Laser Ablation-Optical Emission Spectroscopy (LA-OES or LIBS) for direct studies on solids, liquids,... where in situ measurements (elemental or isotopic) are mandatory. In complementary to these photon-based methods, new ion detection methods such as ElectroSpray-Mass Spectrometry (ES-MS) seems promising for speciation studies. Principle, advantages and limitations as well as results obtained and trends for these different methods will be presented.
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