Gulaboski, Rubin (2023) Analysis of Square-Wave Voltammograms. . (Unpublished)
![[thumbnail of Analysis of Square-Wave Voltammograms.pdf]](/style/images/fileicons/text.png) |
Text
Analysis of Square-Wave Voltammograms.pdf - Presentation Download (835kB) |
Abstract
Square-wave voltammetry is a differential technique that utilizes a waveform consisting of a sequence of symmetrical square waves superimposed on a base staircase, which is applied to the working electrode. In an experiment using square-wave voltammetry, the potential of the working electrode is incrementally changed through a series of forward and reverse pulses, starting from an initial potential and ending at a final potential. The magnitude of the forward step is determined by the square amplitude, while the reverse step is determined by subtracting the square increment from the square amplitude.When a square wave potential is applied to the working electrode, it generates electric currents. These currents are measured twice during each square-wave cycle: once at the end of the forward pulse (if) and once at the end of the reverse pulse (ir). The difference between these two measured currents (Δi = if - ir) is plotted against the potential of the base staircase. This process yields a symmetrical voltammogram with peak-shaped features, centered around the half-wave potential. The peak current observed is proportional to the concentration being analyzed.
In this brief tutorial, we will discuss the fundamental principles behind analyzing square-wave voltammograms.
| Item Type: | Teaching Resource |
|---|---|
| Subjects: | Natural sciences > Chemical sciences |
| Divisions: | Faculty of Medical Science |
| Depositing User: | Rubin Gulaboski |
| Date Deposited: | 16 Jun 2023 12:38 |
| Last Modified: | 16 Jun 2023 12:38 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/31904 |
Actions (login required)
 |
View Item |