engleski

Manganese Detection in Marine Sediments: Anodic vs Cathodic Stripping Voltammetry

Three different electroanalytical techniques for the detection of manganese in marine sediments are evaluated. The anodic stripping voltammetry of manganese at a insitu bismuth-film modified boron-doped diamond electrode and cathodic stripping voltammetry at a carbon paste electrode are shown to lack the required sensitivity and reproducibility whereas cathodic stripping voltammetry at a bare boron-doped diamond electrode is shown to be reliable and selective with a limit of detection, from applying a 60 second accumulation period of 7.4 x 10-7 M and a sensitivity of 0.24 A M-1. The method was used to evaluate the manganese content of marine sediments taken from Šibenik, Croatia.

manganese; anodic stripping voltammetry; cathodic stripping voltammetry; bismuth-film electrodes; boron-doped diamond electrodes; marine sediments.

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