Application of Elimination Voltammetry to the Electroanalysis of an Adsorbed Substance

Varování

Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
Autoři

TRNKOVÁ Libuše KIZEK René DRAČKA Oldřich

Rok publikování 2000
Druh Článek ve sborníku
Konference Electroanalysis ESEAC 2000 SEAC
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Obor Elektrochemie
Klíčová slova Linear scan voltammetry; Elimination voltammetry; Adsorption
Popis 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.
Související projekty:

Používáte starou verzi internetového prohlížeče. Doporučujeme aktualizovat Váš prohlížeč na nejnovější verzi.