Applied Geochemistry

Sample preparation and further analytical methods

Wavelength dispersive X-ray fluorescence analysis (WD-XRF)

The wavelength dispersive X-ray fluorescence spectrometer S8 Tiger 4 KW (Bruker) enables the detection of major and trace elements in one run. The chemical composition of rocks, minerals, ore and soil samples, and building materials can be measured in the form of powder tablets and glass beads at the lower ppm-level. Our element spectrum ranges from elements with mass 9 (F) to 92 (U).

 

Contact: Dr. Ferry Schiperski

Crushing and milling

Jaw crushers are available for crushing rocks and other geological samples. Various mills (vibrating disc mill, McCrone mill) are available for further processing, which pulverize the granulates for further analysis.

 

Contact: Cordelia Lange

Acid digestion and glass beads

Acid digestions of solid samples for main and trace element analysis are carried out in a modern digestion laboratory with special digestors that are also suitable for working with hydrofluoric and perchloric acid. The samples can be prepared as open digestions using the DigiPrep heating block system (SCP Science) or as closed digestions using the Multiwave 5000 microwave reaction platform (Anton Paar).

The Vitriox Electri 4+ fusion unit from Fluxana is available for the production of glass beads from rock powder.

 

Contact: Paul Böttcher und Cordelia Lange

Thin sections

A special grinding laboratory enables the production of thin sections of various rock types. Precision saws in various sizes, a grinding machine (MPS), a lapping machine (Logitec) and a polishing machine are available for this.

 

Contact: Dr. R. Johannes Giebel