1. Institute
for Prevention and Occupational Medicine of the German Social Accident
Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz
1, 44789 Bochum, Germany
2. Max Planck Institute for Biophysical Chemistry (MPI BPC), Facility for Synthetic Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
3. Institute
of Bioanalytical Chemistry, Saarland University, Campus B2.2, 66123 Saarbrücken, Germany
4. Institute
of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße
30, 48149 Münster, Germany