My research interests cover a wide range of areas in molecular environmental sciences including biogeochemical processes in soils and groundwater, reactions and phase transfer processes of pollutants and development and application of in situ methods to characterize and quantify processes in pristine and polluted environments. As surface mediated processes play a key role in determining the transport and transformation of natural and xenobiotic compounds in the subsurface we are interested in a process-based understanding of the factors that control the formation of reactive surfaces, in particular at minerals, and how such surfaces interact with natural and anthropogenic compounds. To this end my research interfaces environmental and aquatic chemistry with environmental microbiology and geochemistry. We apply a wide array of modern instrumentation and techniques, including organic trace analysis (GC-MS, HPLC), compound specific stable isotope analysis (CSIA) as well as as well as electrochemical Mössbauer spectroscopy.