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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/14971
Tipo: Artigo de Periódico
Título: Detection of the origin of Brazilian wines based on the determination of only four elements using high-resolution continuum source flame AAS
Título(s) alternativo(s): Talanta
Autor(es): Boschetti, Wiliam
Rampazzo, Roger T.
Dessuy, Morgana B.
Vale, Maria Goreti R.
Rios, Alessandro de Oliveira
Hertz, Plinho
Manfroi, Vitor
Celso, Paulo G.
Ferrão, Marco F.
Autor(es): Boschetti, Wiliam
Rampazzo, Roger T.
Dessuy, Morgana B.
Vale, Maria Goreti R.
Rios, Alessandro de Oliveira
Hertz, Plinho
Manfroi, Vitor
Celso, Paulo G.
Ferrão, Marco F.
Abstract: A method has been developed to determine 10 elements in Brazilian red wines using high-resolution continuum source flame atomic absorption spectrometry, a technique that allows the fast sequential determination of an essentially unlimited number of elements per sample, each one under previously optimized conditions. All measurements were made without sample preparation, using aqueous standard solutions for calibration. The results were in agreement within 99% of confidence (t-test) with those obtained by inductively coupled plasma optical emission spectrometry. The same grape, Cabernet sauvignon, was used in all experiments, and the wines from each region were prepared especially for this investigation in order to avoid any confusion due to grapes from other regions, which are often used in commercial wines. The elements K, Mn, Rb and Sr were found to be the best indicators for the origin of the wines, based on a Principal Component Analysis.
Palavras-chave: Metals in wine
High-resolution continuum source flame AAS
Origin of wine
Multi-element determination
Principal Component Analysis
Hierarchical Cluster Analysis
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/14971
Data do documento: 2013
Aparece nas coleções:Artigo Publicado em Periódico (Química)

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