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Development of a flow manifold for Fe(III) ion determination with a fluoride ion-selective electrode (CROSBI ID 107389)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bralić, Marija ; Brinić, Slobodan ; Generalić, Eni ; Vrsalović, Ladislav Development of a flow manifold for Fe(III) ion determination with a fluoride ion-selective electrode // Talanta, 63 (2004), 3; 777-783-x

Podaci o odgovornosti

Bralić, Marija ; Brinić, Slobodan ; Generalić, Eni ; Vrsalović, Ladislav

engleski

Development of a flow manifold for Fe(III) ion determination with a fluoride ion-selective electrode

Continuous-flow (CF) and flow-injection (FI) analysis using the fluoride ion-selective electrode (FISE) as detector have been investigated. The measurements were performed in a home-made cell under appropriate flow conditions (2.86 or 3.45 ml min-1, 0.2 ml samples, 10-6 M sodium fluoride). The calibration graph was obtained by plotting the signal height versus concentration of iron in the range of Fe(III) concentration from 10-5 to 10-1 M in acetate buffer (pH 2.8 or 3.4). In all described procedures, the range of linear response extends to the Fe(III) concentration from 1×10-3 to 1×10-1 M, with detection limit 9×10-5 M. The effect of double-line, two-line flow manifold and CF was investigated and discussed.

Iron; Fluoride ion-selective electrode; Flow injection; Continuous analysis; Potentiometry

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Podaci o izdanju

63 (3)

2004.

777-783-x

objavljeno

0039-9140

Povezanost rada

Kemija

Indeksiranost