KATSUOKA, L.PIRES, M.A.F.MUNITA, C.S.2014-07-302014-07-302014-07-302014-07-302000KATSUOKA, L.; PIRES, M.A.F.; SEPULVEDA MUNITA, C.J.A. Effect of some masking reagents in the quantitative determination of fluoride in water by ion-selective electrode. <b>Fresenius Environmental Bulletin</b>, v. 9, p. 179-185, 2000. Disponível em: http://repositorio.ipen.br/handle/123456789/6261.1018-4619http://repositorio.ipen.br/handle/123456789/6261A rapid and selective method has been used for the determination of fluoride by ion-selective electrode. The appropriate pH range for the analysis was 4.5-6.0. The complexing agent studied, tri-sodium citrate, was observed to be the most efficient masking agent for Al, Fe, Ca and Mg. Even a large excess of elements with high stability constant does not interfere with it. The accuracy and precision of the method was evaluated. The method has been applied for drinking and river water samples.179-185openAccessfluoridesion selective electrode analysiswaterbufferscitratessodium compoundsinterfering elementsmetalscomplexesArtigo de periódico9