About the Authors

Federico Brilli

Affiliation Ionicon Analytik G.m.b.H., Innsbruck, Austria

Taina M. Ruuskanen

Affiliations Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria, Department of Physics, University of Helsinki, Helsinki, Finland

Ralf Schnitzhofer

Affiliations Ionicon Analytik G.m.b.H., Innsbruck, Austria, Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria

Markus Müller

Affiliations Ionicon Analytik G.m.b.H., Innsbruck, Austria, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), Centre National de la Recherche Scientifique (CNRS), Villeurbanne, France

Martin Breitenlechner

Affiliation Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria

Vinzenz Bittner

Affiliation Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria

Georg Wohlfahrt

Affiliation Institute of Ecology, University of Innsbruck, Innsbruck, Austria

Francesco Loreto

Affiliation Istituto per la Protezione delle Piante (IPP), Consiglio Nazionale delle Ricerche (CNR), Firenze, Italy

Armin Hansel

armin.hansel@uibk.ac.at

Affiliation Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria

Competing Interests

The authors declare that Federico Brilli, Ralf Schnitzhofer, Markus Müller were temporarily recruited or seconded to the company Ionicon Analytik according to the Marie Curie Industry-Academia Partnership and Pathways (IAPP) project 218065 “PTR-TOF” rules. The authors confirm that the affiliation of Federico Brilli, Ralf Schnitzhofer, and Markus Müller does not alter the adherence to all the PLoS ONE policies regarding sharing data and materials.

Author Contributions

Conceived and designed the experiments: FB TMR RS MM MB VB GW FL AH. Performed the experiments: FB TMR RS MM MB VB GW FL AH. Analyzed the data: FB TMR RS MM MB VB GW FL AH. Contributed reagents/materials/analysis tools: FB TMR RS MM MB VB GW FL AH. Wrote the paper: FB TMR RS MM MB VB GW FL AH.