Voltammetry determination of dopamine by the electrocatalytic response of an electrode modified by a polyaniline film with an inclusion of copper(II) tetrasulfophthalocyanine |
| |
Authors: | L. G. Shaidarova A. V. Gedmina M. L. Artamonova I. A. Chelnokova H. C. Budnikov |
| |
Affiliation: | 19903. Butlerov Institute of Chemistry, Kazan (Volga) Federal University, ul. Kremlevskaya 18, Kazan, 420008, Russia
|
| |
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?8 M under static conditions and to 5.0 nmol under the conditions of flow-injection analysis. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|