[1] UFZ Helmholtz Ctr Environm Res, Dept Environm Biotechnol, D-04318 Leipzig, Germany
[2] UFZ Helmholtz Ctr Environm Res, Dept Analyt Chem, D-04318 Leipzig, Germany
[3] UFZ Helmholtz Ctr Environm Res, Dept Isotope Biogeochem, D-04318 Leipzig, Germany
[4] Rhein Westfal TH Aachen, Dept Environm Biol & Chemodynam, Inst Environm Res Biol 5, D-52074 Aachen, Germany