Rotating Disk Ion Selective Electrodes

Authors

John Cassidy, Technological University DublinFollow
David Mullen, Technological University Dublin
Karen Casey, Technological University Dublin
Patrick Cullen, Technological University DublinFollow

Document Type

Article

Rights

This item is available under a Creative Commons License for non-commercial use only

Disciplines

1.4 CHEMICAL SCIENCES

Publication Details

Electroanalysis, Vol. 8, 1996, pp.918–921.

Abstract

A simulation was undertaken to predict the transient potential response following a concentration step at a rotating disk electrode comprised of an ion selective layer. A basis for this simulation was that the potential response would be independent of rotation rate since the diffusion layer is larger than the double layer at the electrode. In practice it was found that the potential response does vary with rotation rate. The response was such that the apparent concentration of the analyte in solution decreased with increased rotation rate. The reason for this behavior is due to the disruption of the double layer at the electrode surface by convection.

DOI

https://doi.org/10.1002/elan.1140081013

Recommended Citation

Cassidy, J.F., Casey, K., Mullen, D., Cullen, P.:Rotating Disk Ion Selective Electrodes. Electroanalysis, Vol.8., 1996, pp.918–921. doi:10.1002/elan.1140081013

Funder

Technological University Dublin Seed fund Scheme. (Grant number 95/42