Premium
Study of CIO 4 − ‐selective electrode based on a conducting polymer polypyrrole
Author(s) -
Lu Ziling,
Sun Zhisheng,
Dong Shaojun
Publication year - 1989
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.1140010313
Subject(s) - polypyrrole , potentiometric titration , pyrrole , electrode , polymerization , conductive polymer , electrochemistry , polymer , glassy carbon , inorganic chemistry , materials science , detection limit , doping , polymer chemistry , chemistry , cyclic voltammetry , organic chemistry , chromatography , composite material , optoelectronics
A conducting polymer polypyrrole (PPy) CIO 4 − ‐selective electrode has been prepared successfully by polymerizing pyrrole (Py) in CIO 4 − solution on glassy carbon (GC) by electrochemical oxidation. The effects of polymerization conditions on the potentiometric response characteristics of PPy are investigated in detail. The mechanism is discussed based on the doping effect of anions in the conducting polymer. The ClO 4 − ‐selective electrode gives Nernstian potentiometric responses over the 10 −1 –10 −4 M ClO 4 − range with a slope of 52–54 mV/ p ClO 4 − and detection limit of 1.8 × 10 −5 M.