Abstract
The electrochemical behavior of several biologically active catecolamines in studied on a glassy carbon electrode with the surface preliminarily modified by a composite film containing preliminarily carboxylated multi-walled carbon nanotubes (MWNT). The coatings are characterized by the methods of cyclic voltammetry and scanning microscopy. It is shown that the use of hybrid composites prepared by immobilizing MWNT and gold nanoparticles into the film of poly(isonicotinic) acid provides the high diffusion permeability of the surface layers and the efficiency of the electron transfer as regards catecolamines. The possibility of using these electrodes for selective determination of these substances in drugs widely used in the modern practical medicine is demonstrated.
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Original Russian Text © L.K. Shpigun, N.A. Isaeva, M.A. Suranova, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 10, pp. 1030–1036.
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Shpigun, L.K., Isaeva, N.A. & Suranova, M.A. Determination of catecolamines on electrodes modified with multiwalled carbon nanotubes. Russ J Electrochem 50, 926–932 (2014). https://doi.org/10.1134/S1023193514100103
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DOI: https://doi.org/10.1134/S1023193514100103