An over-oxidized poly(Rutin) modified electrode for selective and sensitive determination of catechol and hydroquinone

KARABİBEROĞLU Ş., KOÇAK Ç. C., DURSUN Z.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, vol.850, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 850
  • Publication Date: 2019
  • Doi Number: 10.1016/j.jelechem.2019.113415
  • Journal Name: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Catechol, Hydroquinone, Poly(rutin), Over-oxidation, Polymer film, CARBON-PASTE ELECTRODE, SIMULTANEOUS ELECTROCHEMICAL DETERMINATION, VOLTAMMETRIC DETERMINATION, GOLD NANOPARTICLES, GRAPHENE OXIDE, ASCORBIC-ACID, URIC-ACID, OXIDATION, DOPAMINE, SENSOR
  • Dokuz Eylül University Affiliated: Yes

Abstract

Herein, a new facile and sensitive method was developed that enables the individual and simultaneous determination of catechol (CC) and hydroquinone (HQ) using an over-oxidized and electrochemically polymerised rutin film glassy carbon electrode. The proposed electrode exhibits a large peak potential difference between CC and HQ resulting in well-separated peaks-an important factor for selective determination. CC and HQ were individually and simultaneously determined via differential pulse voltammetry in a pH -7.2 phosphate buffer solution. The individually calculated detection limits for CC and HQ were 8.8 and 52 nM, respectively. In simultaneous determination, the limits of detection were calculated to be 31 and 53 nM for CC and HQ respectively. Moreover, real sample analyses were successfully conducted using tap and waste water. (C) 2019 Elsevier B.V. All rights reserved.