ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Some Analytical Properties of the Nafion-Coated Mercury Film Electrode

M. Bucková, M. Vaníčková, and J. Labuda

Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, SK-812 31 Bratislava

Abstract: The signal of the mercury film electrode modified by a Nafion film at the differential pulse anodic stripping voltammetry of trace metals and adsorptive stripping voltammetry of nitrazepam has been investigated. The polymer membrane deposited by simple casting from 1 % ethanol-water solution enhances significantly the signal stability, in particular at the determination with the sample solutions exchange. The coating restricts also a fouling effect of the dodecyl sulfate anion (up to the concentration 2 g dm^-3) and the hyamine cation (within mg dm^-3). The sensor was applied to the analysis of food samples.

Full paper in Portable Document Format: 505a279.pdf

Chemical Papers 50 (5) 279–282 (1996)