Biogeochemistry: Present and past microbial life in deep sedimentary systems (Deep Biosphere) and in other extreme environments: Identification, quantification, feedstock, processes, interaction with life habitat and adaptation mechanisms.
Organic Geochemistry: Biomolecules in natural systems providing information to the research field fossil energies, (paleo-) environment and (paleo-) climate.
Component-specific Isotope Analysis: microbial processes and carbon sources
Instrumental Analytical Chemistry: GC-MS, HPLC-MS, FT-ICR-MS and Carbon and Hydrogen-Isotope-MS
May 2017: Acting head of GFZ-Section 3.2 Organic Geochemistry
August 2007: Senior Scientist of the GFZ-Section Organic Geochemistry
Juli 2006: Laboratory head of GFZ-Section Organic Geochemistry
Juni 2001: Scientist (PostDoc) at the GFZ-Section Organic Geochemistry
1996-2000: Scientist in the Organic Geochemistry laboratories of the Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg
1996-2000: PhD in Organic Geochemistry at the Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg
1993-1996: Diploma in Chemistry (University of Oldenburg)
1991-1993: Prediploma in Chemistry (University of Oldenburg)
1989: High school diploma at the Ubbo Emmius Gymnasium Leer