A Bipolar Multi-Reagent Chemical Ionization Mass Spectrometer for Versatile Measurements of Gas and Particle Phase Organics
Canagaratna M, Stark H, Williams L, Alton M, Joo T, Lopez-Hilfiker F, Avery A, Pospisilova V, Gentner D, Lambe A. A Bipolar Multi-Reagent Chemical Ionization Mass Spectrometer for Versatile Measurements of Gas and Particle Phase Organics. 2024 DOI: 10.5194/egusphere-egu24-4712.Peer-Reviewed Original ResearchReagent ionsMass spectrometerOrganic speciesIonization mass spectrometerChemical ionization mass spectrometerAcetone dimerC6H6+Products of atmospheric oxidationAerosol composition measurementsEddy correlation measurementsMethyl amineCombinations of ionsNegative ionsReduced nitrogen speciesDetection of trendsMeasurements of gasIonsField campaignUrban emissionsBiological emissionsAerosol inletAtmospheric oxidationNitric acidDimethyl sulfideSimultaneous gasSecondary Brown Carbon Formation From Photooxidation of Furans From Biomass Burning
Joo T, Machesky J, Zeng L, Hass‐Mitchell T, Weber R, Gentner D, Ng N. Secondary Brown Carbon Formation From Photooxidation of Furans From Biomass Burning. Geophysical Research Letters 2024, 51 DOI: 10.1029/2023gl104900.Peer-Reviewed Original ResearchNitrogen-containing organic compoundsBrown carbon formationSecondary organic aerosolSecondary Brown CarbonOrganic compoundsBrown carbonCarbon formationAmmonium sulfate seed aerosolSulfate seed aerosolOptical propertiesReduced nitrogen speciesVolatile organic compoundsAccretion reactionsBiomass burningAmmonium sulfate aerosolsFurfural oxidationBrC formationSeed aerosolAtmospheric oxidantsOrganic aerosolPhotochemical agingGas-phase carbonHigh reactivityAmbient biomassPhotooxidation