TY - T1 - Bisulfate - cluster based atmospheric pressure chemical ionization mass spectrometer for high-sensitivity (<100 ppqV) detection of atmospheric dimethyl amine : proof-of-concept and first ambient data from boreal forest SN - / UR - http://hdl.handle.net/10138/161774 T3 - A1 - Sipilä, M.; Sarnela, N.; Jokinen, T.; Junninen, H.; Hakala, J.; Rissanen, M. P.; Praplan, A.; Simon, M.; Kürten, A.; Bianchi, F.; Dommen, J.; Curtius, J.; Petäjä, T.; Worsnop, D.R. A2 - PB - Y1 - 2015 LA - eng AB - Atmospheric amines may play a crucial role in formation of new aerosol particles via nucleation with sulfuric acid. Recent studies have revealed that concentrations below 1 pptV can significantly promote nucleation of sulfuric acid particles. While sulfuric acid detection is relatively straightforward, no amine measurements to date have been able to reach the critical sub-pptV concentration range and atmospheric amine concentrations are in general poorly characterized. In this work we present a ... VO - IS - SP - OP - KW - SULFURIC-ACID; PARTICLE FORMATION; NUCLEATION; AMMONIA; AEROSOL; H2SO4; QUEST; 114 Physical sciences N1 - PP - ER -