Peroxidase-incorporated hydrophilic polythiophene electrode for the determination of hydrogen peroxide in acetonitrile

Peroxidase-incorporated conducting polymer electrodes are examined as hydrogen peroxide sensors in acetonitrile. An aqueous solution containing horseradish peroxidase (HRP) and chemically polymerized poly(3-(3'-thienyl)propanesulfonic acid) (PTS) was cast on SnO 2-coated glass plates to obtain...

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Bibliographic Details
Published in:Analytica chimica acta 1996-01, Vol.318 (3), p.297-301
Main Authors: Tatsuma, Tetsu, Ariyama, Kaoru, Oyama, Noboru
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Electrochemical methods
Exact sciences and technology
Hydrogen peroxide
Peroxidase-incorporated conducting polymer electrodes
Polythiophene electrode
Sensors
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Summary:Peroxidase-incorporated conducting polymer electrodes are examined as hydrogen peroxide sensors in acetonitrile. An aqueous solution containing horseradish peroxidase (HRP) and chemically polymerized poly(3-(3'-thienyl)propanesulfonic acid) (PTS) was cast on SnO 2-coated glass plates to obtain HRP/PTS electrodes. The electrode exhibits cathodic current responses to hydrogen peroxide (≥ 1 μM) at +100 to +700 mV vs. Ag Ag + in acetonitrile containing 4% water and 0.1 M supporting salt (NaClO 4 or tetra- n-butylammonium perchlorate).
ISSN:0003-2670
1873-4324
DOI:10.1016/0003-2670(95)00451-3