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

Gold Fibre Microelectrode — Application in Trace Analysis of Arsenic and Mercury in Water

M. Rievaj, Š. Mesároš, and D. Bustin

Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, SK-812 37 Bratislava

Abstract: An efficient, reliable and rapid procedure for the routine arsenic and mercury traces determination in tap and environmental waters is proposed. It is based on the application of a gold fibre microelectrode as a working electrode of unique properties. Of these especially the possibility of electrodeposition in a quiescent solution is of special importance because it enables a substantial simplification of experimental procedure enabling thus a convenient performance of experiments. Detection limits and precision of differential pulse anodic stripping gold fibre microvoltammetry (DPASV) are comparable to those obtained by gold rotating disk electrode (RDE). Proposed procedures were tested using synthetic samples spiked with arsenic and mercury. They were found suitable for mentioned pollutants monitoring on the concentration level limited by the state regulation of their contents in drinking water.

Full paper in Portable Document Format: 482a91.pdf

Chemical Papers 48 (2) 91–94 (1994)