A polarographic and voltammetric study of the copper‐phenazopyridine monohydrochloride system in phosphate buffer medium | Zendy

Çakir Osman | Zendy; Biçer Ender | Zendy

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A polarographic and voltammetric study of the copper‐phenazopyridine monohydrochloride system in phosphate buffer medium

Author(s) -

Çakir Osman,

Biçer Ender

Publication year - 1997

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.1140090120

Subject(s) - polarography , chemistry , copper , inorganic chemistry , phosphate buffered saline , electrochemistry , mercury (programming language) , ion , phosphate , dropping mercury electrode , buffer solution , buffer (optical fiber) , nuclear chemistry , electrode , chromatography , organic chemistry , telecommunications , computer science , programming language

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 Cu II 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 Cu I ions. Tests showed that pyridium forms stable complexes with Cu I and Cu II ions. However, it was found that pyridium formed a 1 : 1 complex with Cu II and a 1 : 2 complex with Cu II ions.

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