Institut für Mineralogie
Corrensstraße 24 D-48149 Münster
Tel.: +49 251 83-33464
Fax: +49 251 83-38397
minsek@uni-muenster.de

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Analytical Equipment

Electron Microprobe
JEOL JXA 8900 Superprobe


Electron microprobe for quantitative in-situ chemical analysis of solid samples

Room: 135, IG1

Phone number of the lab:
+49 (0)251 83-33501

Contact person:
 Jasper Berndt-Gerdes

 Technical Details
 Applications
 Literature
 Links & Downloads
Technical Details
Spectrometer: 4 WDS (3 J-Type, 1 H-Type)
1 EDS for analysis of light elements
Available Crystals: LDE1, LDEB, LDEC, 2xTAP,2x PET, 1xLIF, 1xLIFH, 1xPETH
Cathodoluminescence device
Acceleration voltage: 0.2 bis 40 kV
Magnification: 40x to 300.000x
Stage speed: max. 5 mm/s
Probe Current: 10-12 bis 10-5 A
Current Stability: 1x10-3/h (W-electron gun)
Detectable elements range from 4Be to 92U
The microprobe is equipped with four wavelength-dispersive spectrometers which have two changeable analysator crystals each. A Link energy dispersive sepectrometer is also attached to the system. Elements from atomic number 9 (Flourine) can be analysed.
Applications
Main application of the electron microprobe is the rapid, non-destructive chemical analysis of minerals (and rocks). Composition of minerals and/or rocks play a key role in geosciences and can provide fundamental physical and chemical insights of rock genesis. Thus, since about 1960 the electron microprobe is a standard technique for in-situ quantitative major- and minor element analysis of solid samples.
Literature
  • Reed, S.J.B. Electron Microprobe Analysis and Scanning Electron Microscopy in Geology. Cambridge University Press, 1996, 201pp.
  • Potts, P.J., Bowles, J.F.W., Reed, S.J.B., Cave, M.R. (Eds.) Microprone Techniques in the Earth Sciences. The Mineralogical Society Series, 6, 1995, Chapmann & Hall.
  • Heinrich, K.F.J. and Newbury, D.E. (Eds.) Electron Probe Quantitation. Plenum Press, New York, 1991
  • Scott, V.C., Love, G., Reed, S.J.B. Quantitative Electron-Probe Microanalysis. Ellis Horwood Series in Physics and its Applications, 1995.
Links & Downloads
Book EPMA (WWU Muenster only)

 


Imprint | © 2004 Institut für Mineralogie
Institut für Mineralogie
Corrensstraße 24 · D-48149 Münster
Tel.: +49 251 83-33464 · Fax: +49 251 83-38397
E-Mail: