Nernst-Planck-Poisson model for the description of behaviour of solid-contact ion-selective electrodes at low analyte concentration

Jerzy Jasielec, Grzegorz Lisak, Michal Wagner, Tomasz Sokalski, Andrzej Lewenstam

    Research output: Contribution to journalArticleScientificpeer-review

    16 Citations (Scopus)

    Abstract

    All-solid-state electrodes are increasingly being used in clinical, industrial and environmental analysis. This wide range of applications requires deep theoretical description of such electrodes. This work concentrates on the development of a numerical tool for the qualitative prediction of electrochemical behaviour for solid-contact ion-selective electrodes at low analyte concentrations. For this purpose, a general approach to the description of electro-diffusion processes, namely the Nernst-Planck-Poisson (NPP) model, was applied. The results obtained from this model are verified by experimental data of lead(II)-selective electrodes based on a polymeric PVC membrane with polybenzopyrene doped with Eriochrome Black T used as the solid contact.
    Original languageUndefined/Unknown
    Pages (from-to)133–140
    Number of pages8
    JournalElectroanalysis
    Volume25
    Issue number1
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Electrodiffusion
    • Ion-selective electrodes
    • Nernst-Planck-Poisson model
    • Potentiometry
    • Response
    • Solid contact

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