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Hexacyanoferrate‐anion exchanger‐modified carbon paste electrodes
Author(s) -
Labuda Ján,
Hudáková Monika
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.1140090310
Subject(s) - hydrotalcite , ascorbic acid , ion exchange , electrode , carbon paste electrode , inorganic chemistry , electrochemistry , chemistry , carbon fibers , ion exchange resin , glassy carbon , anion exchanger , materials science , ion , organic chemistry , cyclic voltammetry , catalysis , composite number , composite material , food science
The preparation of carbon paste electrodes (CPEs) modified with the hexacyanoferrate ion attached to synthetic hydrotalcite, a solid anion exchange resin Wofatit SBW and a liquid anion exchanger tris‐octylamine (TOA) used as pasting liquid, is described. Stability of the electrodes and their electrocatalytic properties were investigated. The surface‐modified hexacyanoferrate‐TOA‐CPE can be prepared and renewed in a simple and reproducible manner. The sensor was applied to the determination of ascorbic acid in real samples using a mediator accumulation/chronoamperometric detection scheme.