Environmental monitoring of trace elements in bark of Scots pine by thick-target PIXE

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: L. Harju , K.-E. Saarela , J. Rajander , J.-O. Lill , A. Lindroos , S.-J. Heselius
Publication year: 2002
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Journal acronym: NUCL INSTRUM METH B
Volume number: 189
Start page: 163
End page: 167
Number of pages: 5
ISSN: 0168-583X


The lowest detection limits for the analyses of heavy metal ions were obtained by combining dry ashing at 550 degreesC with the PIXE method. More than 100 times higher concentrations were found for the heavy metal ions Fe, Ni, Cu, Zn, Ga, As and Pb in the bark samples from a polluted area in comparison to samples from a non-polluted area. The work demonstrated that external-beam thick-target PIXE is a sensitive and reliable method for quantitative determination of heavy metals in tree bark samples. (C) 2002 Elsevier Science B.V. All rights reserved.


bark, environmental pollution, heavy metals, PIXE, Scots pine

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