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Characterization of electrochemically prepared polyaminopyridines
Author(s) -
Park DeogSoo,
Shim YoonBo,
Park Su Moon
Publication year - 1996
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.1140080110
Subject(s) - acetonitrile , polymer , doping , electrochemistry , materials science , detection limit , electrode , characterization (materials science) , chemical engineering , analytical chemistry (journal) , chemistry , nanotechnology , organic chemistry , optoelectronics , chromatography , composite material , engineering
Polymer‐modified electrodes have been prepared by electrochemical oxidation of 2‐aminopyridine and 4‐aminopyridine in acetonitrile and their chemical properties have been characterized. The polymer films thus prepared were insulators but can be doped with Ag + or Fe(CN) 4 3−to produce semiconducting films. The doping must have been accomplished by the complexation of Ag + with functional groups or trapping of Fe(CN) 4 3−in the polymer matrix. It has also been demonstrated that these films can be used for chemical analysis of Ag + by first collecting Ag + and running subsequent differential pulse voltammetric experiments. The dynamic linearity was excellent in the concentration range of 10 −7 –10 −2 M and the detection limit was about 5 × 10 −8 M.