Uranium determination in tap water by INAA
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2019
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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Resumo
Uranium can exist in the water as a result of soil leaching or technological processes (mining and processing
of phosphate minerals to fertilizer production). The INAA (instrumental neutron activation analysis)
usually is used to determination of trace elements through the conversion of stable nuclei to another
via nuclear reactions. The present work used INAA method for determination of U in water samples.
The goals are validate a methodology to determine U in water samples, apply this methodology and
determinate the physical chemical parameters pH, total solids and alkalinity in tap waters samples. The
validation was stablished based on varying the irradiation and counting times. A-one-liter sample with
87 g of U was prepared from the standard solution of U 1000 mg L1 (SPEX CERTIPREP). From
this prepared solution was taken ten samples of 100 mL each. After complete evaporation at 100oC in
hot plate and at 60oC in infrared lamp, the ten samples were irradiated in the IEA-R1 nuclear research
reactor. Two samples from di erent regions were collected for determination of pH, total solids, alkalinity
and U concentration.
Como referenciar
SOUZA, LUCAS S.G. de; SILVA, PAULO S.C. da. Uranium determination in tap water by INAA. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. Proceedings... Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 594-601. Disponível em: http://repositorio.ipen.br/handle/123456789/30412. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.