Thick-Target PIXE Analysis of Trace Elements in Wood Incoming to a Pulp Mill

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: K.-E. Saarela / L. Harju / J.-O. Lill / J. Rajander / A. Lindroos / S.-J. Heselius / K. Saari
Publisher: WALTER DE GRUYTER & CO
Publication year: 2002
Journal: Holzforschung
Journal acronym: HOLZFORSCHUNG
Volume number: 56
Issue number: 4
Start page: 380
End page: 387
Number of pages: 8
ISSN: 0018-3830


Abstract

Trunk-wood samples of wood raw material incoming to a pulp mill were analysed by thick-target particle induced X-ray emission (PIXE). The tree species studied were pine and spruce from Finland. birch from Finland and Poland and eucalyptus from Uruguay. The wood samples were dry ashed to 550degreesC prior to the analysis in order to increase the,sensitivity of the method. The method was calibrated and validated using, some wood based certified reference materials. The elements determined with the method were P. S. K. Ca. Ti. Mn. Fe. Ni, Zn, Pb, Sr, Rh, Ba and F. The concentrations of the main elements P. S. K. Ca and Mn exceeded 50 ppm in most wood samples, The concentrations of heavy metal ions like Cu, Ni and Pb in the studied were below or close to 1 ppm, The ash content of birch. pine and spruce wood were in the range 0.2-0.4% and that of eucalyptus ca 0.59%.


Keywords

birch, dry ashing, eucalyptus, metal ions, pine, PIXE, Spruce, stem wood, trace elements

Last updated on 2019-17-09 at 07:27