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Hexacyanoferrate-anion exchanger-modified carbon paste electrodes

✍ Scribed by Ján Labuda; Monika Hudáková

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
412 KB
Volume
9
Category
Article
ISSN
1040-0397

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✦ Synopsis

The preparation of carbon paste electrodes (CPEs) modified with the hexacyanoferrate ion attached to synthetic hydrotakite, 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.

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