EVLS as a novel and promising mathematical approach in voltammetric methods
| Authors | |
|---|---|
| Year of publication | 2009 |
| Type | Article in Proceedings |
| Conference | Chemické Listy 103, Modern Electroanalytical Methods 2009 |
| MU Faculty or unit | |
| Citation | |
| Field | Electrochemistry |
| Keywords | electrochemistry; EVLS; metals |
| Description | Cyclic Voltammetry (CV) and Square Wave Voltammetry (SWV) belong to the most powerful electrochemical techniques that can be applied for both analytical and electrokinetic measurements at static drop or solid electrodes, because these methods, on one hand, are easy-to-use and low cost with fast scan rates and, on the other hand, have the ability to show the reversibility of redox reactions. In addition, Elimination Voltammetry with Linear Scan (EVLS) belongs to the newest powerful electrochemical tools. This method provides an improvement of voltammetric results through eliminating and conserving various particular currents, of which the total recorded current is composed. The elimination process provides further information on electrochemical mechanisms. In this study, the behavior of Cd(II), Zn(II) and Cu(II) in the presence of chloride ions (pH ranging from 3 to 9) at two electrodes, particularly, paraffin impregnated graphite electrode (PIGE) and hanging mercury drop electrode (HMDE), measured by CV and SWV was compared. The voltammetric data was further processed by EVLS. The values of elimination coefficients of elimination functions for different scan rate combinations were calculated by Matlab program. |
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