engleski

Square-wave voltammetry of europium(III)-salicylate complex

Square-wave voltammetric measurements of the Eu(III)-salicylate (Eu-Sal) complex in 0.55 mol 1−1 NaCl at pH 5.3 were made. At various europium concentration levels (from 10−8 to 10−6 mol 1−1) the redox process of the Eu-Sal complex is reversible, with adsorption of the reactant of the redox reaction. The detection limit with an accumulation of 5 min at 0 V vs. Ag/AgCl was 10 −8 mol 1−1 Eu(III). A maximum surface concentration Γmax=(2.31±0.46)×10−11 mol cm−2 was found.

voltammetry; europium

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