Graphite-araldite® composite electrode: didactic applications - part II

Quimica nova

Santos, Sidney Xavier dos¹  Calixto, Carolina Maria Fioramonti¹  Cavalheiro, Éder Tadeu Gomes¹ 

[1] Universidade de São Paulo, São Carlos, Brasil

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

DOI  :  10.5935/0100-4042.20140061

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

CC BY