The use of square-wave anodic stripping voltammetry (SWASV) as a direct on-plate detection method for thin-layer chromatography (TLC) is described. A commercially available carbon screen-printed microelectrode array, complete with a reference and auxiliary electrode, was used to detect Cd 2þ , Cu 2þ and Pb 2þ during the chromatographic separation. Detection limits are typically less than 10 ng for each analyte. A comprehensive review of all on-plate electrochemical detection methods for TLC is also provided.

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