Otto, S.* et al. Pyrolysis-gas chromatography-mass spectrometry with electron-ionization and resonance-enhanced-multi-photon-ionization for the characterization of terrestrial dissolved organic matter in the Baltic Sea. Anal. Methods 8, 2592-2603 (2016) Kleeblatt, J. et al. Needle trap sampling thermal-desorption resonance enhanced multiphoton ionization time-of-flight mass spectrometry for analysis of marine diesel engine exhaust. Anal. Methods 7, 3608-3617 (2015)