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

L. Harju, K-E Saarela, Johan Rajander, Jan-Olof Lill, A. Lindroos, Sven-Johan Heselius

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    Abstract

    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.
    Original languageUndefined/Unknown
    Pages (from-to)163–167
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
    Volume189
    Publication statusPublished - 2002
    MoE publication typeA1 Journal article-refereed

    Keywords

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

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