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Wavelength dispersive X-ray fluorescence spectroscopy as a fast, non-destructive and cost-effective analytical method for determining the geochemical composition of small loose-powder sediment samples
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. Institute für Geoökologie, Technische Universität Braunschweig, Brunswick, Germany.
2014 (English)In: Journal of Paleolimnology, ISSN 0921-2728, E-ISSN 1573-0417, Vol. 52, no 3, 265-276 p.Article in journal (Refereed) Published
Abstract [en]

X-ray fluorescence spectroscopy (XRF) has been used extensively to analyze many types of environmental samples, including lake sediments. In most cases, however, analyses have required either a relatively large sample mass or sample pretreatment, e.g. lithium borate fusion, and have not taken advantage of the potential of XRF analysis as a non-destructive technique. This paper describes the development of two completely non-destructive calibration methods that use small, i.e. 200- and 500-mg loose-powder sediment samples. Analytical performance of these methods was assessed using ten different certified reference materials and a previously analyzed sediment profile, and for both methods, accuracy and precision were less than +/- 10 % (or a few ppm) for 26 elements (Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Mn, Fe, Ni, Cu, Zn, Ga, As, Br, Rb, Sr, Y, Zr, Sn, Sb, Ba, W and Pb). This shows that quantitative wavelength dispersive X-ray fluorescence analysis, using small loose-powder samples, can be a useful geochemical tool for many paleolimnological applications, especially because lack of pretreatment ensures that samples can be used for further analysis.

Place, publisher, year, edition, pages
Springer Netherlands, 2014. Vol. 52, no 3, 265-276 p.
Keyword [en]
WD-XRF analysis, method, calibration, lake sediment
National Category
Environmental Sciences Oceanography, Hydrology, Water Resources Ecology Geology
Research subject
Limnology; Earth Sciences with Specialization Environmental Analysis
URN: urn:nbn:se:umu:diva-95266DOI: 10.1007/s10933-014-9792-4ISI: 000342338700011OAI: diva2:760682
Available from: 2014-11-04 Created: 2014-10-27 Last updated: 2014-11-04Bibliographically approved

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Rydberg, Johan
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