Trace and some rare earth elements distribution in a sediment profile from Jurumirim Reservoir, São Paulo State, Brazil: total content and extracted phases
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2016
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Journal of Radioanalytical and Nuclear Chemistry
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Resumo
Vertical distribution of some rare earth elements
(REEs) and trace elements through a Jurumirim
Reservoir sediment core is presented. REE fractionation
using BCR sequential extraction protocol was performed to
verify REE mobility in the environment. Three steps (exchangeable,
reducible, oxidizable) and residual fractions
were studied and REE distribution for each was evaluated
by ICP-MS. REEs showed a higher affinity for the reducible
phase. Instrumental neutron activation analysis was
also applied to sediment samples to determine the total
mass fraction for some REE (Ce, Eu, La, Lu, Nd, Sm, Tb,
and Yb). The diagrams normalized to chondrite values
were used for a REE distribution pattern evaluation.
Como referenciar
FRANKLIN, R.L.; SILVA, S.A.; FAVARO, D.I.T.; LUIZ-SILVA, W. Trace and some rare earth elements distribution in a sediment profile from Jurumirim Reservoir, São Paulo State, Brazil: total content and extracted phases. Journal of Radioanalytical and Nuclear Chemistry, v. 309, n. 1, p. 439-451, 2016. DOI: 10.1007/s10967-016-4785-6. Disponível em: http://repositorio.ipen.br/handle/123456789/26807. Acesso em: 19 Apr 2024.
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