Direct sampling of sub-µm atmospheric particulate organic matter in sub-ng m-3 mass concentrations by proton-transfer-reaction mass spectrometry

Markus Mueller1,2, Andreas Klinger1, Marcus Striednig1 and Wisthaler Armin2,3, (1)Ionicon Analytik, Innsbruck, Austria, (2)University of Innsbruck, Innsbruck, Austria, (3)University of Oslo, Oslo, Norway