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

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

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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 languageUndefined
    Pages (from-to)139-144
    JournalAnalytica chimica acta
    Volume273
    Issue number1-2
    DOIs
    Publication statusPublished - 1993

    Keywords

    • IR-12574
    • METIS-106755

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