Chemical ionization mass spectrometry utilizing ammonium ions (NH4+CIMS) for measurements of organic compounds in the atmosphere - Xu, Lu ; Gilman, Jessica B.; Robinson, Michael A. ; Warneke, Carsten ; Breitenlechner, Martin ; Wennberg, Paul O. ; Brown, Steven S. ; Veres, Patrick R. ; Novak, Gordon A. ; Crounse, John D. ; Lamplugh, Aaron ; Neuman, J. Andrew ; Coggon, Matthew M. ; Stockwell, Chelsea E. (2025)