Analytical Utility of Cylindrical Microelectrodes
Abstract
The behavior and utility of a platinum microelectrode is demonstrated for the cylindrical geometry. The working electrode used here is a small platinum wire (25 micro m in diameter and 0.5 to 1.0 cm in length) which is sealed in a 2 micro L glass microcapillary pipet. Mass transport to a stationary cylinder in quiescent solution is governed by axi-symmetrical cylindrical diffusion. Various experiments (chronoamperometry and cyclic staircase and square-wave voltammetry) were performed on the ferri-ferrocyanide couple which was chosen as a reversible system. The electrode exhibited the predicted behavior in these experiments. Plating and stripping of silver illustrates the practicality of this electrode, especially as employed with square-wave voltammetry. Cylindrical electrodes, Voltammetry, Square wave voltammetry, Stripping analysis, Microelectrodes, Platinum.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1989
- Accession Number
- ADA208661
Entities
People
- Janet Osteryoung
- John J. O'dea
- Scott T. Singleton
Organizations
- University at Buffalo