Janeva, Milkica and Kokoskarova, Pavlinka and Maksimova, Viktorija and Gulaboski, Rubin (2019) Square‐wave Voltammetry of Two‐step Surface Electrode Mechanisms Coupled with Chemical Reactions – A Theoretical Overview. Electroanalysis, 29. pp. 1-20. ISSN 1040-0397
Preview |
Text
Galley Proofs 05 08 2019.pdf Download (1MB) | Preview |
Abstract
Square‐wave voltammetry (SWV) of so‐called “surface redox reactions” is seen as a simple and efficient tool to quantify large number of drugs, physiologically active substances and other important chemicals. It also provides elegant methods to get access to relevant kinetic and thermodynamic parameters related to many lipophilic compounds. Moreover, with this technique we can study activity of various enzymes by exploring the “protein‐film voltammetry” set up. In this work, we focus on theoretical SWV features of four complex surface electrode mechanisms, in which the electron exchange between the working electrode and the studied redox substrate takes place in two successive steps. While we present large number of calculated square‐wave voltammograms, we give hints to recognize particular two‐step surface mechanism, but also to distinguish it from other similar mechanisms. We present plenty of relevant aspects of surface two‐step surface EE, two‐step surface ECE and surface catalytic EEC’ mechanisms. Moreover, we present for the first time a series of theoretical results related to two‐step surface EECrev mechanism (i. e. two‐step surface reaction coupled to follow‐up reversible chemical step). The simulated voltammetric patterns presented in this work can bring relevant aspects to resolve some experimental situations met in voltammetry of many redox enzymes and other important substances whose electrochemical transformation occurs in two‐steps.
| Item Type: | Article |
|---|---|
| Subjects: | Medical and Health Sciences > Basic medicine Natural sciences > Chemical sciences Natural sciences > Physical sciences |
| Divisions: | Faculty of Medical Science |
| Depositing User: | Rubin Gulaboski |
| Date Deposited: | 04 Sep 2019 08:19 |
| Last Modified: | 04 Sep 2019 08:20 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/22409 |
Actions (login required)
 |
View Item |