Abstract
Solid samples can be analysed as without a prior decomposition step, if they are pulverized and then embedded in a thin layer of a cold-setting polymer. This method is very appropriate for materials which are difficult to decompose or which can be easily contaminated. The sample components are evenly distributed in a thin layer, which improves considerably the signal-tonoise-ratio, and this leads to a decrease of the limits of detection. The reproducibility of the method was tested with cobalt oxide and yttrium oxide and also a mixture of these with silver oxide and manganese dioxide. Between 20 and 60 ng of these elements can be determined without difficulty, with a precision of ± 2–4%. The correlation coefficients found for the calibration graphs were between 0.994 and 0.999.
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K. Hügel, H. Klenk, K. Bächmann,Fresenius Z. Anal. Chem. 1988,331, 367.
J. Pavel, U. Frey,Zentrale Analytik, CIBA-GEIGY AG, Basel, April 1982.
J. Billiet, R. Dams, J. Hoste,X-Ray Spectrom. 1980,9, 206.
G. Hartmann, H. Klenk, H. D. Projahn, K. Bächmann,Fresenius Z. Anal. Chem. 1986,325, 105.
P. Hahn-Weinheimer, A. Hirner, K. Weber-Diefenbach,Grundlagen und praktische Anwendung der Röntgenfluoreszenzanalyse (RFA), Vieweg, Wiesbaden, 1984.
R. O. Müller,Spektrochemische Analysen mit Röntgenfluoreszenz. Oldenburg, Munich, 1967.
E. L. Gunn, Quantitative Technics, in:Handbook of X-Rays (E. F. Kaelble, ed.), McGraw-Hill, New York, 1967.
K. Togel, in:Zerstörungsfreie Materialprüfung (E. A. W. Müller, ed.), Oldenburg, Munich, 1961, p. 152.
L. S. Birks,X-Ray Spectrochemical Analysis, 2nd Ed., Interscience, New York, 1971.
E. P. Bertin,Principles and Practice of X-Ray Spectrometric Analysis, 2nd Ed., Plenum, New York, 1975.
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Bächmann, K., Steigerwald, K. & Klenk, H. Development of a method for direct determination of solids as thin films by energy dispersive X-ray fluorescence analysis. Mikrochim Acta 108, 299–302 (1992). https://doi.org/10.1007/BF01242440
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DOI: https://doi.org/10.1007/BF01242440