A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Sensitivity and Selectivity of Ion-Selective Electrodes Interpreted Using the Nernst-Planck-Poisson Model
Tekijät: Jasielec JJ, Mousavi Z, Granholm K, Sokolski T, Lewenstam A
Kustantaja: AMER CHEMICAL SOC
Julkaisuvuosi: 2018
Journal: Analytical Chemistry
Tietokannassa oleva lehden nimi: ANALYTICAL CHEMISTRY
Lehden akronyymi: ANAL CHEM
Vuosikerta: 90
Numero: 15
Aloitussivu: 9644
Lopetussivu: 9649
Sivujen määrä: 6
ISSN: 0003-2700
DOI: https://doi.org/10.1021/acs.analchem.8b02659
Tiivistelmä
The Nernst-Planck-Poisson model is used for modeling the sensitivity and selectivity of ion-selective electrodes (ISEs) with plastic membranes. Two pivotal parameters characterizing ISE response are in focus: sensitivity and selectivity. An interpretation of sensitivity, which considers the concurrent influence of anions and cations on the ISE slope, is presented. The interpretation of selectivity shows the validity and limits of approaches hitherto taken to measure the true (unbiased) selectivity coefficient. The validity of more idealized interpretations by the diffusion-layer model is conceived.
The Nernst-Planck-Poisson model is used for modeling the sensitivity and selectivity of ion-selective electrodes (ISEs) with plastic membranes. Two pivotal parameters characterizing ISE response are in focus: sensitivity and selectivity. An interpretation of sensitivity, which considers the concurrent influence of anions and cations on the ISE slope, is presented. The interpretation of selectivity shows the validity and limits of approaches hitherto taken to measure the true (unbiased) selectivity coefficient. The validity of more idealized interpretations by the diffusion-layer model is conceived.
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