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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Cesium Ion-Selective Electrode Based on Upper-rim Calix[4]crown Ionophore

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.4, pp.428-432
Namgung, Miok
Ihm, Hyejae
Paek, Kyungsoo
Yun, Youngja
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Abstract

A PVC membrane electrode based on upper-rim calix[4]crown as ionophore was prepared using dioctyl sebacate (DOS) as a plasticizer. The potential response of this membrane electrode to alkali, alkaline earth metal cations were examined. This membrane electrode exhibited a Nemstian response to <TEX>$10^{-5}-10^{-1}M$</TEX> of CsCI with a slope of 52.3 mV/decade in Tris-buffer(pH 7.20). Its response time (<TEX>$t_{90%}$</TEX>) was 10s and it could be used for at least 2 months.

keywords
calix[4]crown, DOS, Nernstian response


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