Solid contact ion sensor with conducting polymer layer copolymerized with the ion-selective membrane for determination of calcium in blood serum

Natalia Abramova, Javier Moral-Vico, Jordi Soley, Cristina Ocaña, Andrey Bratov

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

© 2016 Elsevier B.V. A new solid contact ion selective electrode with intermediate conducting polymer (CP) layer formed by electropolymerization on a gold electrode of a bifunctional monomer, n-phenyl-ethylenediamine-methacrylamide (NPEDMA), which contains a methacrylamide group attached to aniline, is presented. The conducting polymer was studied by means of optical spectroscopy, cyclic voltammetry and potentiometric measurements. Ca2+-ion-selective membrane based on acrylated urethane polymer was shown to co-polymerize with the CP forming highly adhesive boundary that prevents formation of water layers between the CP and membrane, thus enhancing the stability and life-time of the sensor. The designed ion-selective electrode was successfully used for determination of total calcium ion concentration in blood serum samples.
Original languageEnglish
Pages (from-to)50-57
JournalAnalytica Chimica Acta
Volume943
DOIs
Publication statusPublished - 2 Nov 2016

Keywords

  • Blood serum
  • Calcium ions
  • Conducting polymer
  • Solid-contact ion selective electrode

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