Electrochemical sensing of total sulphites in beer using non-modified screen-printed carbon electrodes

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Ramos, RM (Autor) FCUP; Brandao, PF (Autor) Outra; Goncalves, LM (Autor) Outra; Vyskocil, V (Autor) Outra; Rodrigues, JA (Autor) FCUP

Revista

Título: Journal of the Institute of Brewing

Vol. 123

Páginas: 45-48

ISSN: 0046-9750

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 18 Citações

Outras Informações

ID Authenticus: P-00M-QTC

DOI: 10.1002/jib.402

Abstract (EN): An analytical method that combines gas-diffusion microextraction with square-wave voltammetric detection using commercial non-modified screen-printed carbon electrodes was employed in the determination of total sulphites in beer. The developed methodology showed low limits of detection (0.050 mg L-1) and quantification (0.17 mg L-1) and an intraday precision of 4.8%. The proposed method was also compared with a reference methodology used in the beer industry (EBC method 9.25.3) showing no significant differences in the obtained results. This is a simple, cheap and notably portable alternative for brewers that wish to quantify sulphites in their products. Copyright (C) 2017 The Institute of Brewing & Distilling

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4