Voltammetric determination of gold with a carbon paste electrode modified with Rhodamine B-hexadeclyester. | [Science International • 1992]

Author(s):

1. Christa Talaber: Institute of Analytical Chemistry, Karl-Franzens University Graz, Universitatsplatz 1, Austria

2. Kurt Kalcher: Institute of Analytical Chemistry, Karl-Franzens University Graz, Universitatsplatz 1, Austria

3. Gottfried Kolbl: Institute of Analytical Chemistry, Karl-Franzens University Graz, Universitatsplatz 1, Austria

4. Xiaohua Cai: Institute of Analytical Chemistry, Karl-Franzens University Graz, Universitatsplatz 1, Austria

5. Georg Raber: Institute of Analytical Chemistry, Karl-Franzens University Graz, Universitatsplatz 1, Austria

Abstract:

A method for the determination of gold is presented using a carbon paste electrode modified with the hexadecyl-ester of rhodamine B. Gold can be precon-centrated onto the surface of the electrode under open circuit conditions and analyzed by differential pulse voltammetry. The current response is linearly dependent on the concentration of Au within the range of 0.2 to 50mg/I with suitable preconcentration times.

Page(s): 347-350

DOI: DOI not available

Published: Journal: Science International, Volume: 4, Issue: 4, Year: 1992

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