Laboratory IRMS
Since 1992 in our lab stable isotopes of nitrogen and carbon have been measuring in different compounds of the marine and terrestric environment. Additional sample preparation procedures allow us to analyze the isotopic composition of disolved nitrogen compounds.
Instrumentation
- Thermo Delta V Advantage
- with Conflo IV and elemental analyzer Flash 2000
- with Gas Bench II
- Thermo Delta V Advantage
- with Conflo IV and elemental analyzer EA IsoLink
- Bay Instruments MIMS (Membran Inlet mass spectrometer)
Measurements
- Measurement of δ13C in POM, plankton und sediments
- Measurement of δ15N in POM, plankton und sediments
- Measurement of δ15N in dissolved Ammonium
- Measurement of tracer samples (enriched with 15N und 13C)
- Measurement δ15N und δ18O in N2O from nitrate with Gas Bench II (Denitrifier method)
- Direct measurement of dissolved N2, O2, and Ar concentrations in environmental water samples with MIMS
