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

✍ Scribed by Tetsu Tatsuma; Kaoru Ariyama; Noboru Oyama

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 449 KB
Volume: 318
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(95)00451-3

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✦ Synopsis

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,-coated glass plates to obtain HRP/PTS electrodes. The electrode exhibits cathodic current responses to hydrogen peroxide (2 1 PM) at + 100 to + 700 mV vs. Ag/Ag+ in acetonitrile containing 4% water and 0.1 M supporting salt (NaClO, or tetra-n-butylammonium perchlorate).

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