Nora Zannoni¹, Denis Leppla², Pedro Ivo Lembo³, Thorsten Hoffmann⁴, Marta Sá⁵, Alessandro C De Araujo⁶ and Jonathan Williams¹, (1)Max Planck Institute for Chemistry, Mainz, Germany, (2)Johannes Gutenberg University of Mainz, Mainz, Germany, (3)National Institute for Amazon Research (INPA), Manaus, Brazil, (4)Johannes Gutenberg University of Mainz, Institute of Inorganic and Analytical Chemistry, Mainz, Germany, (5)Instituto Nacional de Pesquisas da Amazônia (INPA), Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA), Manaus, Brazil, (6)Brazilian Agricultural Research Corporation (EMBRAPA), Belem, PA, Brazil