Quantification of arsenic in sugar cane brandy of minas gerais using carbon paste electrode modified with carbon nanotubes


Autoria(s): Teixeira, Meryene C.; Lisboa, E. F.; Saczk, Adelir A.; Okumura, Leonardo L.; Cardoso, Maria G.; Oliveira, Marcelo F.; Magriotis, Zuy M.
Data(s)

13/06/2016

Resumo

An eletroanalytical method for determination of arsenic in sugar cane brandy using an electrode consisting of carbon paste modified with carbon nanotubes (CNTPE) and mineral oil has been developed. The cyclic (CV) and linear sweep voltammetry modes (LSV) with cathodic stripping were employed for CNTPE containing mineral oil. The analytical curves were linear from 30.0 to 80.0 µg L-1 for LSV. The limit of detection (L.O.D.) was 10.45 μg L-1 and limit of quantification (L.O.Q.) was 34.33 μg L-1. The developed method was applied to the determination of arsenic in tree commercial sugar cane brandy samples. The results were in good agreement with those obtained by HGAAS, showing that CNTPE containing mineral oil can be successfully employed to the simultaneous determination of arsenic in sugar cane brandy samples.

Identificador

TEIXEIRA, M. C. et al. Quantification of arsenic in sugar cane brandy of minas gerais using carbon paste electrode modified with carbon nanotubes. ECS Transactions, [S.l.], v. 43, n. 1, p. 225-229, 2012.

http://ecst.ecsdl.org/content/43/1/225.abstract

http://repositorio.ufla.br/jspui/handle/1/11253

Idioma(s)

en_US

Publicador

Electrochemical Society

Direitos

restrictAccess

Fonte

ECS Transactions

Tipo

Artigo