Merging zones standard addition technique for determination of copper in beer by flow injection atomic absorption spectrophotometry

• Tipo: Artigo em Revista Científica Internacional
• Data: 1998

Autores

Fernandes, SMV (Autor) Outra; Rangel, AOSS (Autor) Outra; Lima, JLFC (Autor) FFUP

Revista

Título: Journal of AOAC International

Vol. 81

Páginas: 645-647

ISSN: 1060-3271

Editora: AOAC INTERNATIONAL

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 7 Citações

Outras Informações

ID Authenticus: P-001-80A

Abstract (EN): A flow injection system for determination of copper in beer by atomic absorption spectrophotometry by the standard additions method is described. The manifold, based on the merging zone technique, prevents the burner head from clogging, as observed with the conventional reference method, With 5 standard additions, results are comparable with those of the reference method. Relative deviations were less than 5.8%, precision was better than 6.4%, and sampling rate was about 30 samples/h. A less precise, less accurate, but faster procedure (75 samples/h) is possible with only 2 standard additions. The detection limit was 5 C mu g/L.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3