Chemically modified field-effect transistors; potentiometric Ag+ selectivity of PVC membranes based on macrocyclic thioethers

Zbigniew Brzozka, Peter L.H.M. Cobben, David N. Reinhoudt*, Jilles J.H. Edema, Jan Buter, Richard M. Kellogg

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    46 Citations (Scopus)
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    Abstract

    A chemically modified field-effect transistor (CHEMFET) with satisfactory Ag+ selectivity is described. The potentiometric Ag+ selectivities of CHEMFETs with plasticized PVC membranes based on macrocyclic thioethers have been determined. All the macrocyclic thioethers tested showed silver response and a selectivity towards Ag + and Hg2+ versus other interfering cations. The highest Ag+ selectivity was obtained for a 14-membered cyclic tetrathioether with an exocyclic methylene group.

    Original languageEnglish
    Pages (from-to)139-144
    Number of pages6
    JournalAnalytica chimica acta
    Volume273
    Issue number1-2
    DOIs
    Publication statusPublished - 15 Feb 1993

    Keywords

    • CHEMFETs
    • Ion-selective electrodes
    • Macrocyclic thioethers
    • Potentiometry
    • PVC membranes
    • Silver

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