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dc.contributor.authorHerzog, G.
dc.contributor.authorMcMahon, B.
dc.contributor.authorLefoix, M.
dc.contributor.authorMullins, N.
dc.contributor.authorCollins, C.
dc.contributor.authorMoynihan, H.
dc.contributor.authorMoynihan, H.
dc.contributor.authorArrigan, Damien
dc.identifier.citationHerzog, G. and McMahon, B. and Lefoix, M. and Mullins, N. and Collins, C. and Moynihan, H. and Moynihan, H. et al. 2008. Electrochemistry of dopamine at the polarised liquid|liquid interface facilitated by an homo-oxo-calix[3]arene ionophore. Electroanalytical Chemistry. 622 (1): pp. 109-114.

The homo-oxo-calix[3]arene-facilitated electrochemistry of dopamine at the polarised liquid|liquid interface is presented. Cyclic voltammetry indicated that the dopamine: homo-oxo-calix[3]arene complex formed at the interface between water and 1,2-dichloroethane had a 1:2 stoichiometry, which was confirmed by 1H NMR titration. The electrochemically-determined association constants for the homo-oxocalix[ 3]arene complexes with dopamine (log b 8.3), Na+ (8.0) and K+ (7.5) showed that the ionophore was more selective for dopamine over the two alkali metal cations than the dibenzo-18-crown-6 ionophore. Square wave voltammetry was employed for assessment of low concentration measurements, with a limit of detection of 3.8 lM dopamine achieved. These results show that oxo-calixarene-based ionophores are useful reagents for the detection of dopamine at the interface between two immiscible electrolyte solutions.

dc.titleElectrochemistry of dopamine at the polarised liquid|liquid interface facilitated by an homo-oxo-calix[3]arene ionophore
dc.typeJournal Article
dcterms.source.titleElectroanalytical Chemistry
curtin.accessStatusFulltext not available

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