Improved determination of aluminium in port wine by electrothermal atomic absorption spectrometry using potassium dichromate chemical modification and end-capped graphite tubes

• Tipo: Artigo em Revista Científica Internacional
• Data: 1997

Autores

Almeida, AA (Autor) FFUP; Cardoso, MI (Autor) Outra; Lima, JLFC (Autor) FFUP

Revista

Título: Journal of Analytical Atomic Spectrometry

Vol. 12

Páginas: 837-840

ISSN: 0267-9477

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 13 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-AYT

DOI: 10.1039/a701604b

Abstract (EN): Improvements in the determination of aluminium in Port Wine by electrothermal atomic absorption spectrometry, namely in terms of precision and sensitivity, are described. Chemical modification with potassium dichromate was evaluated and compared with the performance of the most commonly used chemical modifiers. The behaviour of end-capped transverse heated graphite tubes (recently commercialized) and the standard tubes was compared. The developed method proved to be accurate and an improvement in sensitivity was achieved, when compared with that obtained without chemical modification and using standard graphite tubes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4