Silver selective electrodes based on thioether functionalized calix[4]arenes as ionophores

Elz˙bieta Malinowska, Zbigniew Brzozka, Krzysztof Kasiura, Richard J.M. Egberink, David Reinhoudt

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    Abstract

    Silver selective electrodes based on thioether functionalized calix[4]arenes 1 and 2 as ionophores were investigated. For both ionophores the selectivity coefficients (log kAg,M) were lower than −2.2 for Hg(II) and lower than −4.6 for other cations tested. The best results were obtained with membranes containing dithioether functionalized calix[4]arene (ionophore 2), potassium tetrakis(4-chlorophenyl) borate (KTpCIPB) and bis(1-butylpentyl)adipate (BBPA) as a plasticizer. The Ag(I)-response functions exhibited almost theoretical Nernstian slopes in the activity range 10−6–10−1M of silver ions.
    Original languageUndefined
    Pages (from-to)245-251
    JournalAnalytica chimica acta
    Volume298
    Issue number2
    DOIs
    Publication statusPublished - 1994

    Keywords

    • IR-57357

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