Carsten Simon¹, Tania P. Pimentel², Maria Terezinha F. Monteiro³, Luiz A. Candido³, Daniel Petras⁴, Vanessa-Nina Roth⁵, Markus Lange¹, Pieter Dorrestein⁴, Bruce Forsberg², Sávio Ferreira³ and Gerd Gleixner¹, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil, (3)Instituto Nacional de Pesquisas da Amazônia (INPA), Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA), Manaus, Brazil, (4)University of California San Diego, Collaborative Mass Spectrometry Innovation Center, La Jolla, CA, United States, (5)Thüringer Landesamt für Umwelt, Bergbau und Naturschutz (TLUBN), Jena, Germany