How to reveal the bacterial imprint in natural dissolved organic matter: Optimizing ultrahigh resolution mass spectrometry analysis

Sarah Bercovici1, Thorsten Dittmar1 and Jutta Niggemann2, (1)University of Oldenburg, Oldenburg, Germany, (2)University of Oldenburg, ICBM-MPI Bridging Group for Marine Geochemistry, Oldenburg, Germany