Electrochemical determination of iodide by poly(3-aminophenylboronic acid) film electrode at moderately low pH ranges

ÇİFTÇİ H., TAMER U.

ANALYTICA CHIMICA ACTA, cilt.687, sa.2, ss.137-140, 2011 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 687 Sayı: 2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.aca.2010.12.019
  • Dergi Adı: ANALYTICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.137-140
  • Anahtar Kelimeler: Poly(3-Aminophenylboronic acid), Iodide-selective electrode, Open circuit potential, Conducting polymer electrode, ION-SELECTIVE ELECTRODES, POTENTIOMETRIC IODIDE, SEAWATER, SENSOR, IODATE, CHROMATOGRAPHY, OXIDATION, CARRIER
  • Gazi Üniversitesi Adresli: Evet

Özet

A new potentiometric sensor for the determination of iodide based on poly(3-aminophenylboronic acid) (PAPBA) film electrode was constructed. Poly(3-Aminophenylboronic acid) films were synthesized electrochemically on platinum electrode by cyclic voltammetry. The effect of film thickness, pH, and preconditioning parameters on the electrode performance were examined. The analytical performance was evaluated and linear calibration graphs were obtained in the concentration range of 10(-6) to 10(-1) M iodide ion. The limit of detection was found to be 8 x 10(-7) M. The response time of the sensor was 5s and its lifetime is about one week. To check the selectivity of the PAPBA film for iodide ion, potential interferences such as Cl-, Br-, F-, CN-, IO3-, Ca-2(+), and Mg-2(+) were tested. The PAPBA electrode was also employed as a sensing platform for the determination of iodide ions in commercial table salt. (C) 2010 Elsevier B.V. All rights reserved.