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- E-ISSN 2288-8985
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Potentiometric performances of polymer membtane electrode based on cyclosporin
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.6, pp.490-494
(2005). Potentiometric performances of polymer membtane electrode based on cyclosporin. Analytical Science and Technology, 18(6), 490-494.
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Abstract
The main component governing selectivity in ion-selective electrodes and optodes is the ionophore. For this reason, a member of natural products that possess selective ion-binding properties have long been sought after. By applying this principle, the performance of cyclosporin used as neutral carriers for calcium selective polymeric membrane electrode was investigated. The calcium ion-selective electrode based on cyclosporin gave a good Nernstian response of 26.6 mV per decade for calcium ion in the activity range <TEX>$1{\times}10^{-6}M$</TEX> to <TEX>$1{\times}10^{-2}M$</TEX>. The optimized calcium ion-selective electrode displayed very comparable selectivity for <TEX>$Ca^{2+}$</TEX> ion against alkali and alkaline earth metal ions, <TEX>$Na^{2+}$</TEX>, and <TEX>$Mg^{2+}$</TEX> in particular.
- keywords
- cyclosporin, ionophore, <TEX>$Ca^{2+}$</TEX>, ion-selective electrode
Reference
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(1984.) Ion-Selective Electrode Rev,
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(1988) R. Traber. Prog Med. Chem. 3,
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(19951991.) Ionophores for Ion-Selective Electrodesand Optodes,
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