Eletrodo compósito à base de grafite-Araldite®: aplicações didáticas - parte II

Química Nova

Carolina Maria Fioramonti Calixto¹  Sidney Xavier Dos Santos¹  Éder Tadeu Gomes Cavalheiro¹ 

[1] ,Universidade de São Paulo Instituto de Química de São Carlos Departamento de Química e Física MolecularSão Carlos SP ,Brasil

关键词: composite electrode;    graphite-epoxy composites;    dopamine;   

DOI  :  10.5935/0100-4042.20140061

来源: SciELO

【 摘 要 】

This work proposes the use of a graphite-Araldite® 70% (graphite, m/m) composite electrode in didactic experiments, specifically in the quantitative determination of the neurotransmitter dopamine (DA) in a sample of pharmaceutical formulation. The goal is to demonstrate the possibility of using voltammetric techniques in quality control of medicines, besides covering some concepts such as the influence of pH on the redox process, the differential pulse voltammetry (DPV) technique, the optimization of experiments and comparison with an official method described in the United States Pharmacopoeia.

【 授权许可】

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