Electrochemical and Spectral Studies of the Interaction of Niflumic Acid with Metavanadate (VO3-) Ions

Coskun E., Biçer E., Bulut I.

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, vol.10, no.11, pp.9216-9231, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 10 Issue: 11
  • Publication Date: 2015
  • Journal Name: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.9216-9231
  • Keywords: Niflumic acid, vanadium (V), complex, stoichiometry, voltammetry, spectroscopy, STRIPPING VOLTAMMETRIC DETERMINATION, CRYSTAL-STRUCTURE, COPPER(II) COMPLEXES, ELECTRONIC-SPECTRA, RAT ADIPOCYTES, VANADIUM, VANADATE, BEHAVIOR, DECOMPOSITION, LIGANDS
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The voltammetric behavior of niflumic acid (HNIF) in the presence and absence of vanadium (V) was investigated using square-wave (SW) voltammetry at physiological pH. SW voltammogram of HNIF exhibited only one cathodic peak at -0.998 V. Due to the complex formation between metavanadate (VO3-, abbreviated as MV) and HNIF, a cathodic signal was observed at -1.228 V. According to the electrochemical results, the stoichiometry of V(V) complex was found to be 1:1. The spectroscopic characterization of the synthesized solid powder V(V)-NIF complex was also carried out.