Determination of mercury in sea water by stripping voltammetry

Dedicated to the memory of Professor H.W. Nürnberg.

Ingemar Gustavsson

University of Uppsala, Department of Analytical Chemistry, P.O. Box 531, S-751 21 Uppsala Sweden


Abstract

Differential pulse anodic stripping voltammetry employing a gold disc electrode for mercury analysis of sea water samples is demonstrated. A commercial Teflon-embedded gold disc electrode and a self-manufactured epoxy resin cast gold disc electrode were used for the determination of mercuy concentrations of about 10−11M. A smooth gold surface was obtained by a careful polishing procedure, and the sea water samples were UV-irradiated prior to voltammetric stripping analysis in order to decompose disturbing dissolved organic matter.

http://www.sciencedirect.com/science/article/pii/0022072886800833

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