Issue 8, 2008
From the journal:

Journal of Environmental Monitoring

Sample damage during X-ray fluorescence analysis—case study on ammonium salts in atmospheric aerosols

Katleen Van Meel,*a   Anna Worobiec,a   Marianne Strangera  and  René Van Griekena  

* Corresponding authors

a University of Antwerp, Department of Chemistry, Environmental Analysis Group, Universiteitsplein, 1, Antwerpen, Belgium
E-mail: Katleen.vanmeel@ua.ac.be
Tel: +32 3 820 23 46

Abstract

Atmospheric aerosols can consist of, amongst others, compounds like NH4NO3 or (NH4)2SO4. Such components can suffer radiation damage and/or evaporate during EDXRF measurements, providing errors on successively applied analysis. The aim of this work is to investigate the influence of measurements using conventional EDXRF on the volatile compounds and to compare it with the influence of polarized beam EDXRF using secondary targets (and hence indirect irradiation). The effect of different parameters (acquisition time, accelerating voltage, current and medium) on the concentration loss was studied. The measurements performed in vacuum during a long period lead to the highest losses of volatile compounds. The influence of direct irradiation was proved to be larger than the indirect variant.

Graphical abstract: Sample damage during X-ray fluorescence analysis—case study on ammonium salts in atmospheric aerosols

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Article information

DOI
https://doi.org/10.1039/B807909A
Article type
Technical Note
Submitted
08 May 2008
Accepted
16 Jun 2008
First published
14 Jul 2008

J. Environ. Monit., 2008,10, 989-992

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Sample damage during X-ray fluorescence analysis—case study on ammonium salts in atmospheric aerosols

K. Van Meel, A. Worobiec, M. Stranger and R. Van Grieken, J. Environ. Monit., 2008, 10, 989 DOI: 10.1039/B807909A

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