Research on electrochemical detection methods for electroactive species in flowing streams is focussing on improving selectivity without compromising sensitivity or detection limits. With this in mind an effective electrode would be one that can examine electroactivity at many potentials in the shortest possible time frame. This work has investigated this possibility by using a single low temperature isotropic carbon working electrode with a choice of three scanning techniques. The most familiar one is cyclic voltammetry which is known to generate a wealth of qualitative information. The other modes are pulse and square-wave cyclic voltammetry. These modified versions of cyclic voltammetry offer advantages in two additional domains. Electroactivity may be studied in two time frames, increasing the diagnostic power, and quantitative determinations are possible. The enhancements and limitations of these scanning methods were investigated based on data obtained from a variety of electroactive model compounds. The survey was performed in quiet and flowing solutions using flow injection analysis for the latter.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.75948 |
| Date | January 1988 |
| Creators | Eccles, Gordon N. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Chemistry.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000913341, proquestno: AAINL52415, Theses scanned by UMI/ProQuest. |
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