Journal
ANALYTICAL METHODS
Volume 5, Issue 4, Pages 851-856Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ay26041g
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The electroanalytical determination of selenium(IV) via anodic stripping voltammetry is shown to be possible for the first time using screen printed graphite electrodes. The deposition potential and time was optimised allowing a linear range from 10 to 1000 mu g L-1 in 0.1 mol L-1 HClO4 to be realised with a limit of detection (3 sigma) found to correspond to 4.9 mu g L-1. Utilising these screen printed graphite electrodes, the detection of selenium(IV) in drinking (tap) water is shown to be feasible allowing a detection limit (3 sigma) of 19.2 mu g L-1 to be realised which is below the levels set by the United States Environmental Protection Agency. Such an approach suggests the possibility of a disposable screening tool for selenium(IV) in drinking water samples.
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