Professional Experience

2001 - present : Professor in the Dept of Chemistry and Director of the Research Unit Analytical - Environmental & Geochemistry (AMGC), as well as Head of Research Unit Earth System Science, Vrije Universiteit Brussel, Brussels, Belgium.
2010 - present :Guest Professor, Dept. of Geology, Katholieke Universiteit Leuven, Leuven, Belgium.
2009 - present :Guest Professor, Dept of Geology and Soil Sciences, Ghent University, Ghent, Belgium.
2008 - present :Guest Professor, Dept of Geology, University of Liège, Liège, Belgium.
1996 - 2000 :Senior Scientist & Director of Analytical Laboratories, Institute of Mineralogy, Natural History Museum, Berlin, Germany.
1994 - 1995 :Research Geologist, Dept of Earth and Planetary Science, University of California at Berkeley, Berkeley, California, USA.
1993 :Postdoctoral Researcher, Institute of Geophysics and Planetary Physics, University of California at Los Angeles, Los Angeles, California, USA.
1991 - 1992 :Exploration Geologist, Shell Oil Exploration & Production Co - Houston - Texas, USA.
1989 - 1990 :Research Assistant, Nuclear Chemistry Dept, Lawrence Livermore National Laboratory, Livermore, California, USA (part-time).
1987 - 1992 :Teaching and/or Research Assistant, Dept of Gelogy, University of California at Davis, Davis, California, USA.