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, cilt.850, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 850
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.jelechem.2019.113415
  • Dergi Adı: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: 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 Üniversitesi Adresli: Evet

Özet

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.