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.
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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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Honegger, K., Wintsch, W. Electron microprobe analysis of micro amount powder samples: A case study on high purity coal. Mikrochim Acta 91, 225–232 (1987). https://doi.org/10.1007/BF01199499
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DOI: https://doi.org/10.1007/BF01199499