Issue 7, 2008
From the journal:

Journal of Analytical Atomic Spectrometry

Application of high-energy polarised beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions

Katleen Van Meel,a   Clàudia Fontàs,b   René Van Grieken,a   Ignasi Queralt,c   Manuela Hidalgob  and  Eva Marguí*b  

* Corresponding authors

a Department of Chemistry, Environmental Analysis Group, University of Antwerp, Universiteitsplein, 1, Antwerp, Belgium

b Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain

c Laboratory of X-Ray Analytical Applications, Institute of Earth Sciences “Jaume Almera”, CSIC, Solé Sabarís s/n, Barcelona, Spain

Abstract

In the present work, the analytical performance of a methodology based on a preconcentration using activated thin layers followed by high-energy polarised beam energy-dispersive XRF spectrometry (HE-P-EDXRF) for the determination of trace amounts of Cd in saline solutions is presented. Linear calibration curves were obtained over the range 5–8000 μg L−1 of Cd. When comparing the developed method to the direct analysis of Cd in sea water, the detection limits were improved by several orders of magnitude, with values of 2.25 μg L−1 (Al2O3 target) and 0.075 μg L−1 (CsI target), respectively. The accuracy was checked by analyzing spiked natural sea water at Cd concentrations of 20, 100 and 600 μg L−1 and results were compared to those obtained with anodic stripping voltametry and no significant differences at the 95% confidence level were found. The method has a good reproducibility over the investigated period of time and the precision of the method was better than 10%.

Graphical abstract: Application of high-energy polarised beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions

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Article information

DOI
https://doi.org/10.1039/B718382H
Article type
Technical Note
Submitted
30 Nov 2007
Accepted
27 Mar 2008
First published
21 Apr 2008

J. Anal. At. Spectrom., 2008,23, 1034-1037

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Application of high-energy polarised beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions

K. Van Meel, C. Fontàs, R. Van Grieken, I. Queralt, M. Hidalgo and E. Marguí, J. Anal. At. Spectrom., 2008, 23, 1034 DOI: 10.1039/B718382H

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