Abstract

AbstractWe show that a liquid mercury drop electrode surface can be electrochemically renewed without mechanical detachment of the drop. Voltammetric experiments with a mechanically renewed stationary (hanging) mercury drop or meniscus electrode (SME) and an electrochemically renewed SME are compared. The measurements were performed with two surface active organic depolarizers, i.e., 2‐aminoanthraquinone and dithiothreitol and surface inactive Cd(NO3)2. The results show that efficient purely electrochemical renewal of the electrode surface of SME for voltammetric purposes is possible.

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