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Your search keyword '"Lúcia H. Mascaro"' showing total 1 results
Start Over Author "Lúcia H. Mascaro" Topic animals
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1. A glassy carbon electrode modified with silver nanoparticles and functionalized multi-walled carbon nanotubes for voltammetric determination of the illicit growth promoter dienestrol in animal urine

Author

Manoel M S, Lima Filho, Alessandra A, Correa, Francisco D C, Silva, Francisco A O, Carvalho, Lúcia H, Mascaro, and Thiago M B F, Oliveira

Subjects
Silver, Illicit Drugs, Nanotubes, Carbon, Dienestrol, Animals, Metal Nanoparticles, Cattle, Electrochemical Techniques, Electrodes
Abstract

An electroanalytical method for determining dienestrol (DNL) in bovine urine samples is described. A glassy carbon electrode (GCE) modified with silver nanoparticles and functionalized multi-walled carbon nanotubes was used as working sensor. The modified GCE displays substantial analytical improvements including an amplified signal, fast electron transfer kinetics, and resistance to fouling. The irreversible oxidation signal of DNL is pH-dependent. Best reactivity is found at pH 3.0, where a typical anodic peak is recorded at 0.8 V (vs. Ag/AgCl). Square-wave voltammetry revealed a 8.4 nM detection limit (1.9 μg L

Published
2019

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