New polyacrylate-based lead(II) ion-selective electrodes

Grzegorz Lisak, E Grygolowicz-Pawlak, M Mazurkiewicz, E Malinowska, Tomasz Sokalski, Johan Bobacka, Andrzej Lewenstam

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)

Abstract

A novel polyacrylate-based matrix for potentiometric ion-selective electrodes has been developed. Isododecyl acrylate, acrylonitrile and hexanedioldiacrylate co-monomers along with the thermo-initiator 2,2-dimethoxy-2-phenylacetophenone were used as polymeric matrix components. A lead(II)-selective electrode (Pb-ISE) was constructed using the above matrix. The electrode showed comparable analytical performance in the micromolar range to Pb-ISEs with conventional poly(vinyl chloride)-based membranes containing neutral ionophore and with solid-state membranes containing a mixture of lead sulphide and silver sulphide. Electrochemical impedance spectroscopy studies revealed much lower ion mobility in the polyacrylate membrane than in plasticized poly(vinyl chloride) membranes. This result additionally indicates the possibility of obtaining a lower detection limit for ISEs using the new acrylate matrix.
Original languageUndefined/Unknown
Pages (from-to)293–297
Number of pages5
JournalMicrochimica Acta
Volume164
Issue number3-4
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Keywords

  • Polyacrylate membrane
  • Lead-selective electrode
  • Detection limit
  • Membrane fluxes

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