1. Department
of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, D-04318 Leipzig-Halle, Germany
2. Isodetect GmbH, D-04103 Leipzig, Germany
3. Institute of Landscape Biogeochemistry, Leibniz-Centre
for Agricultural Landscape Research (ZALF) e.V., D-15374 Müncheberg, Germany
4. Equipe Géochimie des Isotopes Stables, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, 75005 Paris, France