Synthesis of Poly(Vinylferrocene) Perchlorate/Poly(3,3 '-Diaminobenzidine) Modified Electrode in Dichloromethane for Electroanalysis of Hydroquinone


Ulker E., Kavanoz M.

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, cilt.26, sa.9, ss.1947-1955, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 9
  • Basım Tarihi: 2015
  • Doi Numarası: 10.5935/0103-5053.20150173
  • Dergi Adı: JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1947-1955
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

Özet

Poly(vinylferrocenium) perchlorate-poly(3,3'-diaminobenzidine) (PVF+ClO4--PDAB) composite film was synthesized electrochemically for the first time on Pt disc electrode in a dichloromethane solution containing poly(vinylferrocene) (PVF) polymer, 3,3'-diaminobenzidine (DAB) monomer and tetrabutylammonium perchlorate as supporting electrolyte. This modified electrode was characterized using cyclic voltammetry, Fourier transform infrared spectroscopy (FTIR), UV-Vis spectrophotometry, atomic absorption spectroscopy (AAS), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) methods and it was used for amperometric determination of hydroquinone (HQ) at potential ranges of 0.40 and 0.60 V. The best analytical results for HQ was obtained at 0.45 V in NaHSO4/Na2SO4 solution (pH 2.0) and limit of detection, limit of quantification and linear response range were found as 7.469 x 10(-5), 2.489 x 10(-4) and 2.489 x 10(-4)-65.0 mmol L-1 (R-2 = 0.996), respectively. These results were compared to poly(3,3'-diaminobenzidine) (PDAB) coated and uncoated Pt electrodes. The best analytical results were obtained with composite film because of behavior as electron transfer mediator of PVF.