Fast determination of trace elements on aerosol-loaded filters by X-ray fluorescence analysis considering the inhomogeneous elemental distribution.
X-ray fluorescence (XRF) analysis was successfully applied for the determination of Ca, Cu, Fe, Mn, Ni, Pb, V and Zn on aerosol filters with a diameter of 150 mm. Ambient aerosol was collected on quartz-fibre filters by Digitel high-volume samplers. For XRF analysis three small filter pieces with a diameter of 32 mm were cut out of each filter, considering the radial dependence of elemental distribution on the filter. Elemental concentration decreases by 8-10% from the centre to the outer circle for coarse mode elements. Distribution of fine mode elements display only small radial dependence (2-4%). Results of quantitative analysis by XRF were compared with atomic spectrometric methods (GF-AAS, ICP-OES). The good agreement between the methods confirmed the application of XRF spectrometry for routine analysis of filter samples loaded with ambient aerosol.
Steinhoff
G
G
Institute of Inorganic and Applied Chemistry, University of Hamburg, Germany.
Haupt
O
O
Dannecker
W
W
D000336:Aerosols / Q000737:chemistry; D005374:Filtration / Q000295:instrumentation; D015203:Reproducibility of Results; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation / Q000379:methods*; D014131:Trace Elements / Q000032:analysis*
D000336:Aerosols; D014131:Trace Elements