A sensitive reagentless pH probe with a ca. 120 mV/pH unit response

Ian Streeter, Henry C. Leventis, Gregory G. Wildgoose, Malingappagari Pandurangappa, Nathan S. Lawrence, Li Jiang, Timothy G. J. Jones, Richard G. Compton

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Abstract

The use of a basal plane pyrolytic graphite electrode immobilized with two redox active species each capable of undergoing a two-electron, two-proton redox process has allowed the development of a sensitive pH probe over a wide pH and temp. range. When the values of the peak potentials of the two processes are combined they shift by ~120 mV/pH unit at 25°, as measured against two independent, defined ref. electrodes. [on SciFinder(R)]
Original languageEnglish
Pages (from-to)718-721
Number of pages4
JournalJournal of Solid State Electrochemistry
Volume8
DOIs
Publication statusPublished - 2004

Keywords

  • reagentless pH probe

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