Analytical Applications of Cooperative Interactions Associated with Charge Transfer in Cyanometalate Electrodes: Analysis of Sodium and Potassium in Human Whole Blood

David R. Coon, Linda J. Amos, Andrew Bruce Bocarsly, Patricia A. Fitzgerald Bocarsly

Research output: Contribution to journalArticle

67 Scopus citations

Abstract

Nickel electrodes chemically modified with an interfacial layer of nickel ferrocyanide are shown to be of analytical utility for simultaneously sensing sodium and potassium ions in aqueous solutions, human whole blood serum, and human whole blood. By controlling the charge-transfer characteristics of this versatile interface, interfering blood proteins and potential interferences associated with other alkali cations can be avoided. A solid-state model which explains the excellent simultaneous selectivity and sensitivity of the nickel ferricyanide interface is proposed.

Original languageEnglish (US)
Pages (from-to)3137-3145
Number of pages9
JournalAnalytical Chemistry
Volume70
Issue number15
DOIs
StatePublished - Aug 1 1998

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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