Ferrocene-containing Multilayer Film-coated Electrodes Sensitive to Ascorbic Acid: Effects of Permselective Inner Layers on the Dynamic Range of the Electrodes
Open Access
- 5 June 2003
- journal article
- Published by The Electrochemical Society of Japan in Electrochemistry
- Vol. 71 (6) , 508-510
- https://doi.org/10.5796/electrochemistry.71.508
Abstract
Polyelecctrolyte multilayer (PEM) films composed of poly (allylamine hydrochloride) and poly (potassium vinyl sulfate) were employed for improving the dynamic range of ascorbic acid sensors fabricated by coating the surface of a gold (Au) electrode with a ferrocene-containing film. The modified electrode can be used to determine ascorbic acid up to ca. 20 mM, while the upper detection limit of PEM film-free sensor was ca. 3 mM.Keywords
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