Sensitivity and Selectivity of Ion-Selective Electrodes Interpreted Using the Nernst-Planck-Poisson Model

Jerzy J. Jasielec, Zekra Mousavi, Kim Granholm, Tomasz Sokalski, Andrzej Lewenstam

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

5 Citeringar (Scopus)

Sammanfattning

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.

OriginalspråkOdefinierat/okänt
Sidor (från-till)9644–9649
TidskriftAnalytical Chemistry
Volym90
Utgåva15
DOI
StatusPublicerad - 2018
MoE-publikationstypA1 Tidskriftsartikel-refererad

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