Selective electrodes for silver and anions based on polymeric membranes containing complexes of triisobutylphosphine sulfide with silver

Jordi Bricker, Sylvia Daunert, Leonidas G Bachas, Manuel Valiente

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Polymer membrane ton-selective electrodes have been prepared by using a water-insoluble complex of silver with triisobutylphosphine sulfide (TIBPS) as the ion carrier. These electrodes respond to silver as well as to iodide, thiocyanate, and bromide in a near-Nernstian fashion. In addition, they present good detection limits for the above-mentioned ions. It is postulated that the mechanism of response of these electrodes is very similar to the one of the pressed-pellet electrodes. Since the latter exhibit interference by sulfhydryl-containing proteins, the effect caused by ovalbumin on the TIPBS-based electrodes has been investigated. Reduction of this interference is achieved by using polymeric matrices that contain free hydroxyl or carboxyl groups.

Original languageEnglish
Pages (from-to)1585-1589
Number of pages5
JournalAnalytical Chemistry
Volume63
Issue number15
StatePublished - Aug 1 1991
Externally publishedYes

Fingerprint

Polymeric membranes
Sulfides
Silver
Anions
Electrodes
Ions
Ovalbumin
Iodides
Bromides
Hydroxyl Radical
Polymers
Membranes
Water
Proteins

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Selective electrodes for silver and anions based on polymeric membranes containing complexes of triisobutylphosphine sulfide with silver. / Bricker, Jordi; Daunert, Sylvia; Bachas, Leonidas G; Valiente, Manuel.

In: Analytical Chemistry, Vol. 63, No. 15, 01.08.1991, p. 1585-1589.

Research output: Contribution to journalArticle

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