Combined application of INAA and PIXE for studying the regional aerosol composition in Southern Africa

I. Salma, W. Maenhaut, H. J. Annegarn, M. O. Andreae, F. X. Meixner, M. Garstang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

As part of the SAFARI-92 biomass burning experiment, aerosol collections were carried out with several size-fractionating sampling devices at a number of sites of Southern Africa. One of the samplers used at all ground-based sites was a stacked filter unit (SFU). The SFU samples were analyzed by both INAA and PIXE analysis. The present paper gives an intercomparison of the analytical results obtained in order to assess the accuracy and to check the quality assurance of the analytical procedures. Twenty-one common elements were determined by both INAA and PIXE. Concentrations of 13 elements (i.e., Na, Mg, Al, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Zn and Br) were generally measured with sufficient precision in both techniques for performing the intercomparison. The INAA and PIXE data were compared in terms of PIXE/INAA concentration ratios on a sample by sample basis for the coarse and fine size fraction separately. The atmospheric concentrations for K, Mn, and Fe agreed within 5-10%, the agreement between the data for the other common elements was typically better than 15%. Possible explanations for lower than 1.0 ratios for Cl, Br and Na are presented. The common elements were classified into groups according to their detectability and sensitivity in each technique.

Original languageEnglish
Pages (from-to)143-148
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume216
Issue number1
Publication statusPublished - 1997

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Southern Africa
Aerosols
Quality assurance
Biomass
Sampling
Equipment and Supplies
Chemical analysis
Experiments
Common Data Elements

ASJC Scopus subject areas

  • Analytical Chemistry
  • Inorganic Chemistry
  • Nuclear Energy and Engineering

Cite this

Salma, I., Maenhaut, W., Annegarn, H. J., Andreae, M. O., Meixner, F. X., & Garstang, M. (1997). Combined application of INAA and PIXE for studying the regional aerosol composition in Southern Africa. Journal of Radioanalytical and Nuclear Chemistry, 216(1), 143-148.

Combined application of INAA and PIXE for studying the regional aerosol composition in Southern Africa. / Salma, I.; Maenhaut, W.; Annegarn, H. J.; Andreae, M. O.; Meixner, F. X.; Garstang, M.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 216, No. 1, 1997, p. 143-148.

Research output: Contribution to journalArticle

Salma, I, Maenhaut, W, Annegarn, HJ, Andreae, MO, Meixner, FX & Garstang, M 1997, 'Combined application of INAA and PIXE for studying the regional aerosol composition in Southern Africa', Journal of Radioanalytical and Nuclear Chemistry, vol. 216, no. 1, pp. 143-148.
Salma, I. ; Maenhaut, W. ; Annegarn, H. J. ; Andreae, M. O. ; Meixner, F. X. ; Garstang, M. / Combined application of INAA and PIXE for studying the regional aerosol composition in Southern Africa. In: Journal of Radioanalytical and Nuclear Chemistry. 1997 ; Vol. 216, No. 1. pp. 143-148.
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