Open AccessGraphite-Araldite®composite electrode: didactic applications - Part II.
Author(s) -
Carolina Maria Fioramonti Calixto,
Sidney Xavier dos Santos,
Éder Tadeu Gomes Cavalheiro
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140061
Subject(s) - araldite , graphite , composite number , electrode , materials science , composite material , chemistry , layer (electronics) , adhesive
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