Multicalibrational procedure for more reliable analyses of ions at low analyte concentrations

Grzegorz Lisak, Ari Ivaska, Andrzej Lewenstam, Johan Bobacka

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    13 Sitaatiot (Scopus)

    Abstrakti

    Pb2+-ISEs were used to demonstrate a new multicalibrational approach which gives comprehensive information about the response of a potentiomeric sensor. The method was used to study and optimize the non-equilibrium response of sensors, such as obtained with solid-contact ISEs used in time dependent conditioning procedure with recovery of the low detection limit at lowest analyte concentrations. The developed method allows better handling of non-equilibrium conditions in quantitative determinations of analytes. The multicalibrational approach with time optimization showed to be superior when compared to fixed measurement time approach using Pb2+-ISEs at non-equilibrium in the determination of lead(II) in environmental sample.
    AlkuperäiskieliEi tiedossa
    Sivut27–32
    Sivumäärä6
    JulkaisuElectrochimica Acta
    Vuosikerta140
    NumeroSpecial issue
    DOI - pysyväislinkit
    TilaJulkaistu - 2014
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • ion-selective electrodes
    • non-equilibrium sensors
    • potentiometry

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