Solid phase retention with reversed elution in a SIA system with detection by flame atomic absorption spectrometry

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

Costa, RCC (Autor) Outra; Araujo, AN (Autor) FFUP; Montenegro, MCBSM (Autor) FFUP; Pimentel, MF (Autor) Outra; Silva, VL (Autor) Outra

Revista

Título: Canadian Journal of Analytical Sciences and Spectroscopy

Vol. 48 Nº 5

Páginas: 320-324

ISSN: 1205-6685

Editora: Spectroscopy Society of Canada

Indexação

ISI Web of Knowledge - 3 Citações

ISI Web of Science

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-000-J9J

Abstract (EN): The development of a pre-concentration procedure based on sequential injection analysis with flame atomic absorption spectrometry (SIA/FAAS) for the determination of Mn in water samples presenting a concentration between 4.50 and 200.0 mug L-1 is described. Mn is retained on-line on a strong cationic resin (AG 50W-X8) and eluted under stopped-flow conditions with a chelating solution. Accuracy of the results attained was assessed by comparison with electro thermal atomic absorption spectrometry providing the relationship [SIA](mug/L) = 1.00 (+/-0.07)*[ETAAS](mug/L) - 0.3 (+/-7.6) after analysis of 10 samples. Evaluation of repeatability give a relative standard deviation of 2.9 and 1.8% after ten replicate of two samples containing 108 and 166 mug L-1 of Mn, respectively.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5