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

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Malinowska, Elz˙bieta and Brzozka, Zbigniew and Kasiura, Krzysztof and Egberink, Richard J.M. and Reinhoudt, David N. (1994) Silver selective electrodes based on thioether functionalized calix[4]arenes as ionophores. Analytica Chimica Acta, 298 (2). pp. 245-251. ISSN 0003-2670

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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.

Item Type:Article
Copyright:© 1994 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/57357
Official URL:http://dx.doi.org/10.1016/0003-2670(94)00267-3
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