Electron Microprobe Lab

MfN - Museum für Naturkunde
last updated: July 19, 2023

About the Laboratory

Electron Microprobe Lab

MfN - Museum für Naturkunde
@ Science Programme Evolution and Geoprocesses / Department of Impact and Meteorite Research
This Laboratory is part of:


  • Tbd
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The Electron Microprobe Lab houses a JEOL JXA-8500F electron microprobe that is equipped with a field-emission cathode, five wavelength-dispersive X-Ray spectrometers, and an energy-dispersive spectrometer. Electron microprobe analysis (EMPA) is mainly used to quantitatively investigate the chemical composition of rocks and mineral phases in the micrometer to centimeter range.
Typically, polished sections of rocks or minerals are used for this purpose, but highly vacuum-resistant fossil specimens can also be investigated. Due to its field-emission cathode, the microprobe can image structures with particularly high (i.e., submicrometer) resolution and can be used for chemical analyses as well as the recognition of elemental distribution patterns down to the nanometer range.


  • EPMA, Electron Micro Probe Analyzer, Electron Probe Microanalyzer, X-Ray-Microanalyzer

Analytical Methods

  • EPMA, Electron Probe Microanalysis

  • EDS, EDX, EDXA, EDXS, Energy Dispersive X-Ray Microanalysis, Energy Dispersive X-Ray Spectroscopy, Energy-dispersive X-Ray Analysis, Energy-dispersive X-Ray Spectroscopy, XEDS
  • WDS - Wavelength Dispersive X-Ray Spectroscopy

Laboratory Keywords

  • Element Distribution Maps