Abstract
Because of the fact that real measurements are sometimes described in terms of the (formal) scan rate, the functional relationships between this parameter and the peak current in staircase (SCV) and square-wave voltammetry (SWV) were investigated theoretically. The real SCV peak current is proportional to the square-root of the formal scan rate, v, and inversely proportional to Δ E 0.0541: − i p = 0.1453 nFSc ox ∗ ( D/ π) ½ v ½Δ E −0.0541. In SWV of a reversible electrode reaction the net peak current depends primarily on the frequency, while the influence of the formal scan rate is of minor importance: Δ i p = nFSc ox ∗ D ½(0.7339 f ½ + 0.0026Δ E 0.3118 v ½). On the other hand, in SWV of a totally irreversible electrode reaction, the real net peak current is a stronger function of the formal scan rate: Δ i p = 0.0942 nFSc ox ∗ D ½Δ E −0.11 v ½. Experimental results, obtained in perchlorate solutions of Eu 3+, are in relatively good agreement with the theory.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
