Title: NUCLEAR MAGNETIC RELAXATION STUDIES ON ACTINIDE IONS AND MODELS OF ACTINIDE COMPLEXES
Abstract: There is continuing interest in the study of actinide elements for few decades because of their fundamental role in the nuclear industry. Despite the extensive chemistry reported for the elements, little is known about their relaxivity properties. This chapter surveys the relaxometric measurements performed so far on actinide ions. The ions are divided into two groups depending on whether they are of the simple Men+ type or if they are combined with oxygen atoms in the form of Me species. The chapter focuses on studies of practical interest in nuclear chemistry that have been carried out by relaxometry using Gd3+ as a model of the trivalent actinides. The processing of nuclear wastes before disposal relies on solvent extraction procedures and the NMRD technique yields interesting information on the dynamic behavior of metal complexes with extracting agents. The distribution of actinides in nature is another field of great interest in radiochemistry. Humic acids form complexes with the actinide ions and play an active role in the migration of these ions. NMRD throws some light on the speciation of metal humates.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 11
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