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

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Almeida, AA (Author) FFUP; Cardoso, MI (Author) Other; Lima, JLFC (Author) FFUP

Journal

Title: Journal of Analytical Atomic Spectrometry

Vol. 12

Pages: 837-840

ISSN: 0267-9477

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 13 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4