Online atmospheric pressure chemical ionization ion trap mass spectrometry (APCI-IT-MS n ) for measuring organic acids in concentrated bulk aerosol – a laboratory and field study
A. Vogel, M. Äijälä, M. Brüggemann, M. Ehn, H. Junninen, T. Petäjä, D. Worsnop, M. Kulmala, Jonathan Williams, T. Hoffmann