Sciective 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 journalArticlepeer-review

44 Scopus citations

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 (US)
Pages (from-to)1585-1589
Number of pages5
JournalAnalytical Chemistry
Volume63
Issue number15
DOIs
StatePublished - Jul 15 1991
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry

Fingerprint Dive into the research topics of 'Sciective Electrodes for Silver and Anions Based on Polymeric Membranes Containing Complexes of Triisobutylphosphine Sulfide with Silver'. Together they form a unique fingerprint.

Cite this