Construction of a novel Cu(II)-selective electrode with long life span based on 8-aminoquinoline functionalized bentonite

Dogan B., Çoldur F., Çağlar B., Özdemir A. O., Keleş Güner E., Özdokur K. V.

Monatshefte fur Chemie, vol.154, no.1, pp.53-64, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 154 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1007/s00706-022-03008-5
  • Journal Name: Monatshefte fur Chemie
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core
  • Page Numbers: pp.53-64
  • Keywords: Functionalized-bentonite, Potentiometric electrode, 8-Aminoquinoline, Copper(II) detection, Carboxylated PVC
  • Ondokuz Mayıs University Affiliated: No

Abstract

© 2022, Springer-Verlag GmbH Austria, part of Springer Nature.A novel 8-aminoquinoline-functionalized bentonite was utilized as an electroactive sensing element in the construction of a potentiometric carboxylated-PVC-based polymeric membrane electrode. The electrode exhibited a linear response for copper(II) ions in the concentration range of 1.0 × 10–5−1.0 × 10–2 mol/dm3 with a slope of 28.24 mV/decade. While the response time of the electrode determined as about 20 s, its detection limit and long life time was determined as 5.0 × 10–6 mol/dm3 and 5 months, respectively. The proposed electrode was applied for the potentiometric detection of Cu(II) contents of some spiked water samples and satisfied results were attained. Graphical abstract: [Figure not available: see fulltext.].