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- Title
Voltammetry determination of dopamine by the electrocatalytic response of an electrode modified by a polyaniline film with an inclusion of copper(II) tetrasulfophthalocyanine.
- Authors
Shaidarova, L.; Gedmina, A.; Artamonova, M.; Chelnokova, I.; Budnikov, H.
- Abstract
A polyaniline composite film with an inclusion of copper(II) tetrasulfophthalocyanine, applied on a glassy-carbon electrode (GC) has demonstrated a mediatory activity in the oxidation of dopamine in acidic and neutral media. The conditions for the formation of a polymer film on the surface of a glassy-carbon electrode for registering the maximum electrocatalytic effect in the oxidation of dopamine are found. A method of voltammetric and amperometric detection of dopamine on the composite film electrode under static and flow conditions is proposed. The use of a polyaniline composite with an inclusion of copper(II) tetrasulfophthalocyanine, coated with a Nafion film, made possible the reduction of the detection limit for dopamine to 1 × 10 M under static conditions and to 5.0 nmol under the conditions of flow-injection analysis.
- Subjects
ELECTRODES; POLYANILINES; PHTHALOCYANINES; DOPAMINE; POLYMERS
- Publication
Journal of Analytical Chemistry, 2013, Vol 68, Issue 6, p516
- ISSN
1061-9348
- Publication type
Article
- DOI
10.1134/S1061934813060129