Application of Elimination Voltammetry to the Electroanalysis of an Adsorbed Substance

TRNKOVÁ, Libuše, René KIZEK and Oldřich DRAČKA. Application of Elimination Voltammetry to the Electroanalysis of an Adsorbed Substance. In Electroanalysis ESEAC 2000 SEAC. Band/Volume22. Bonn: Rheinische-Friedrich-Wilhelms-Universitaet Bonn, 2000, p. D 27, 1 pp. Reihe Umwelt/Environment. ISBN 3-89336-261-4.

Basic information

• Original name: Application of Elimination Voltammetry to the Electroanalysis of an Adsorbed Substance
• Authors: TRNKOVÁ, Libuše, René KIZEK and Oldřich DRAČKA.
• Edition: Band/Volume22. Bonn, Electroanalysis ESEAC 2000 SEAC, p. D 27, 1 pp. Reihe Umwelt/Environment, 2000.
• Publisher: Rheinische-Friedrich-Wilhelms-Universitaet Bonn

Other information

• Original language: English
• Type of outcome: Proceedings paper
• Field of Study: 10405 Electrochemistry
• Country of publisher: Germany
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/00:00003067
• Organization unit: Faculty of Science
• ISBN: 3-89336-261-4
• Keywords in English: Linear scan voltammetry; Elimination voltammetry; Adsorption
• Tags: adsorption, Elimination voltammetry, Linear scan voltammetry

Abstract

In the elimination voltammetry with a linear scan rate (EVLS), elimination of the selected particular currents from the linear scan voltammetry results is achieved by an elimination function formed by a linear combination of the total currents measured at different scan rates.Theoretical curves of an irreversible current with adsorbed substance being electroactive were calculated for three elimination functions: A - the function eliminating Ik and Ic and conserving Ir , B - the function eliminating Ic and Ir , conserving Ik , and C - the function eliminating Ir and Ik and conserving Ic, where Ic , Ir , and Ik are the charging current, the reversible diffusion current, and the kinetic current, respectively. A larger difference between diffusion and adsorption was exhibited by the elimination function A. It provides a substantial increase in resolution and sensitivity as compared to the linear scan voltammetry current peak and clearly marks the adsorption.

Links

• GV204/97/K084, research and development project: Name: Elektrody modifikované nukleovými kyselinami a bílkovinami. Nové nástroje v biochemickém a biomedicínském výzkumu

Investor: Czech Science Foundation, Electrodes modified with nucleic acids and proteins. New tools in biochemical and biomedical research

• MSM 143100011, plan (intention): Name: Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů

Investor: Ministry of Education, Youth and Sports of the CR, Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles