A Polarographic and Voltammetric Study of the Copper-Phenazopyridine Monohydrochloride System in Phosphate Buffer Medium

Çakir O., Biçer E.

Electroanalysis, cilt.9, sa.1, ss.87-90, 1997 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 1
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1002/elan.1140090120
  • Dergi Adı: Electroanalysis
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.87-90
  • Anahtar Kelimeler: Copper, Phenazopyridine monohydrochloride, Polarography, Voltammetry
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The electrochemical behavior of copper complexed with phenazopyridine monohydrochloride (2,6-diamino 3-phenylazo-pyridine monohydrochloride, pyridium) has been studied in 0.1 M phosphate buffer (pH 6.0). It was observed that CuII ions in the presence of pyridium are reduced at the mercury electrode in two distinct stages; this is a consequence of the interaction of pyridium with CuI ions. Tests showed that pyridium forms stable complexes with CuI and CuII ions. However, it was found that pyridium formed a 1:1 complex with CuI and a 1:2 complex with CuII ions.