Adsorptive Stripping Voltammetric Determination of Cobalt (II) on the Carbon Paste Electrode

Abstract

effective parameters in sensor response were examined. The detection limit of Co(II) was 1.8 µg l -1 and relative standard deviations for 10 and 100 µg l -1 of Co(II) were 0.8 and 1.2%, respectively. The calibration curve was linear for 3.3-187.1 µg l -1 Co(II). This technique does not use mercury and therefore, has a positive environmental benefit. The method, which is reasonably sensitive and selective, has been successfully applied to the determination of trace amount of Co(II) in water samples.