Anion-selective electrodes based on electropolymerized porphyrin films

Sylvia Daunert, Shelley Wallace, Antonio Florido, Leonidas G Bachas

Research output: Contribution to journalArticle

163 Citations (Scopus)

Abstract

Ion-selective membranes were prepared by electropolymerization of cobalt(II) tetrakis(o-aminophenyl)porphyrin on a glassy-carbon surface for the development of potentiometric sensors. The resulting electrodes demonstrate a near-Nernstian response to anions and have submicromolar detection limits and good selectivity properties. The selectivity pattern observed is thiocyanate > perchlorate > iodide > nitrite ∼ salicylate ∼ bromide > chloride > bicarbonate > phosphate. The parameters that affect the response of these electrodes, including the electropolymerization conditions, are also described.

Original languageEnglish
Pages (from-to)1676-1679
Number of pages4
JournalAnalytical Chemistry
Volume63
Issue number17
StatePublished - Sep 1 1991
Externally publishedYes

Fingerprint

Electropolymerization
Porphyrins
Anions
Ion selective membranes
Potentiometric sensors
Electrodes
Salicylates
Glassy carbon
Iodides
Bicarbonates
Nitrites
Cobalt
Bromides
Chlorides
Phosphates
thiocyanate
perchlorate

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Anion-selective electrodes based on electropolymerized porphyrin films. / Daunert, Sylvia; Wallace, Shelley; Florido, Antonio; Bachas, Leonidas G.

In: Analytical Chemistry, Vol. 63, No. 17, 01.09.1991, p. 1676-1679.

Research output: Contribution to journalArticle

Daunert, Sylvia ; Wallace, Shelley ; Florido, Antonio ; Bachas, Leonidas G. / Anion-selective electrodes based on electropolymerized porphyrin films. In: Analytical Chemistry. 1991 ; Vol. 63, No. 17. pp. 1676-1679.
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