2004-current: research scientist, II, CIRES, Tropospheric Chemistry group of F.C. Fehsenfeld and D. D. Parrish (since 2009)
1999-2004: Post-doctoral fellow and research scientist, I, CIRES, Atmospheric Chemical Processes group of A.R. Ravishankara
1999: "Dr. rer. nat." (PhD in natural science), thesis: "Temperature Dependence, Pressure Dependence and Influence of Chaperone Mechanism at the Recombination of ClO-Molecules", Institute of Physical Chemistry, University of Göttingen, group of Prof. J. Troe
1995: Diploma thesis at Institute of Physical Chemistry, University of Göttingen, group of Prof. J. Troe, "Temperature and pressure dependence of the recombination reaction O(3P) + NO + M --> NO2 + M"
1988: Abitur, Aldegrever-Gymnasium, Soest, Germany