Determination of Lead(II) in Groundwater Using Solid-State Lead(II) Selective Electrodes by Tuned Galvanostatic Polarization

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)

Interna författare/redaktörer

Publikationens författare: Grzegorz Lisak, Filip Ciepiela, Johan Bobacka, Tomasz Sokalski, Leo Harju, Andrzej Lewenstam
Publiceringsår: 2013
Tidskrift: Electroanalysis
Tidskriftsakronym: ELECTROANAL
Volym: 25
Nummer: 1
Artikelns första sida, sidnummer: 123
Artikelns sista sida, sidnummer: 131
Antal sidor: 9
ISSN: 1040-0397
eISSN: 1521-4109


A method for direct potentiometric determination of lead(II) ion in native, untreated environmental samples of groundwater is reported. In a filtered sample, when applying a solid-state (PbS/Ag2S) ion-selective electrode in tuned galvanostatic polarization (TGP) mode, a concentration of 17.2 +/- 1.6 mu g?dm-3 was measured. The potentiometric results are compared with those obtained using inductively coupled plasma mass spectrometry (ICP-MS), 18.0 +/- 0.4 mu g?dm-3 and differential pulse anodic stripping voltammetry (DPASV), 24.3 +/- 0.5 mu g?dm-3. Owing to limitations of other methods, the analysis of Pb2+ in the untreated and non-filtered samples was only possible with the ion-selective electrode solid-state electrode. The described method can be an attractive alternative to existing methods of Pb2+ determination that are used to monitor groundwater pollution.


All-solid-state ion-selective electrode, Environmental analysis, Lead(II) analysis, Low detection limit, Potentiometry

Senast uppdaterad 2020-21-02 vid 04:41