Investigating Carbonyl Compounds above the Amazon Rainforest using PTR-ToF-MS with NO+ Chemical Ionization. - Ringsdorf, Akima; Edtbauer, Achim; Holanda, Bruna; Poehlker, Christopher; Sá, Marta O.; Araújo, Alessandro; Kesselmeier, Jürgen; Lelieveld, Jos; Williams, Jonathan (Atmospheric Chemistry & Physics Discussions, 2024)