Electron microprobe analysis of micro amount powder samples: A case study on high purity coal |
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Authors: | Kaspar Honegger Wilfried Wintsch |
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Institution: | (1) Gebr. Sulzer AG, Forschung und Entwicklung, KSFE Werkstoffkunde 1511, CH-8400 Winterthur, Schweiz |
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Abstract: | For the major, minor and trace element analysis of the inorganic compounds of a Ruhr-Saar coal different preparation techniques are investigated with X-ray fluorescence analysis, electron microprobe and classical wet chemical methods minimizing sample weight at standard preparation times and analytical accuracies. Considering accuracy as well as preparation efforts, determinations by electron microprobe on small sample amounts (<50 mg) proved to be superior to the other methods.Abbreviations AAS
atomic absorbtion spectrometry
- EMA
electron microprobe analysis
- IC
ion chromatography
- ISE
ion sensitive electrode
- PHOT
photometry
- WCA
wet chemical analysis
- XRF
X-ray fluorescence analysis
- LTA
low temperature plasma ashing
- HTA
high temperature ashing
- l.o.i.
loss on ignition |
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Keywords: | powder samples high purity coal coal analysis sampling techniques electron microprobe analysis |
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