Journal
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
Volume 55, Issue 8, Pages 1337-1350Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0584-8547(00)00240-8
Keywords
atomic absorption spectrometry; Al; seawater; experimental design; data processing
Categories
Ask authors/readers for more resources
The optimization in two steps of seven adjustable parameters through experimental designs associated to an optimal and individualized processing of atomization data allowed to reach a detection limit of 30 ng l(-1) for the quantification of Al in seawater. This detection limit is approximately eightfold lower than that reported previously. Moreover, near the detection limit, the presence of systematic errors, i.e. mathematical miscorrection and weak spectral interferences, which are usually neglected, must be corrected either by using a suitable blank or by estimating such errors. A procedure of highlighting and estimating the mathematical miscorrection and significant Mg and Ca atomic interferences for Al determination at 309.271 nm using a commercial Zeeman apparatus in absence of an Al-free blank is described. Moreover, how to obtain a convenient Al-free blank of seawater is also shown. (C) 2000 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available