Methods

At CFEA isotope mass spectrometer systems (IRMS) with coupling to elemental analyzers, gas chromatographs, high temperature pyrolysis furnaces or high temperature elemental analyzers are available. Furthermore, laser-based cavity ring-down spectrometers (CRDS) are used. An overview of the available equipment available can be found under Equipment.

We also offer various reprocessing procedures

• Optimised denitrification method for the rapid stable isotope analysis of nitrate (NO₃^-) and oxygen in water samples and soil extracts (method description)
• Preparation of highly volatile sugar derivates for oxygen isotopy on different sugar molecules
• Fractionation of soil organic matter into particulate organic matter (fPOM, oPOM) and mineral-associated organic matter (MOM) using density and ultrasonic fractionation