Articles | Volume 11, issue 9
https://doi.org/10.5194/amt-11-5087-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-11-5087-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Sep 2018
Research article |
| 07 Sep 2018
| 07 Sep 2018
Real-time measurements of gas-phase organic acids using SF6− chemical ionization mass spectrometry
Theodora Nah
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
now at: School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong, China
Yi Ji
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
David J. Tanner
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
Hongyu Guo
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
Amy P. Sullivan
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
Nga Lee Ng
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
Rodney J. Weber
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
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25 citations as recorded by crossref.
- Direct contribution of ammonia to α-pinene secondary organic aerosol formation L. Hao et al. https://doi.org/10.5194/acp-20-14393-2020
- Development of an online-coupled MARGA upgrade for the 2 h interval quantification of low-molecular-weight organic acids in the gas and particle phases B. Stieger et al. https://doi.org/10.5194/amt-12-281-2019
- HCOOH in the Remote Atmosphere: Constraints from Atmospheric Tomography (ATom) Airborne Observations X. Chen et al. https://doi.org/10.1021/acsearthspacechem.1c00049
- A low-activity ion source for measurement of atmospheric gases by chemical ionization mass spectrometry Y. Lee et al. https://doi.org/10.5194/amt-13-2473-2020
- Chemical ionization mass spectrometry utilizing ammonium ions (NH4+ CIMS) for measurements of organic compounds in the atmosphere L. Xu et al. https://doi.org/10.5194/amt-15-7353-2022
- Kinetics of the nitrate-mediated photooxidation of monocarboxylic acids in the aqueous phase Y. Lyu et al. https://doi.org/10.1039/D2EM00458E
- Emissions, chemistry or bidirectional surface transfer? Gas phase formic acid dynamics in the atmosphere Z. Gao et al. https://doi.org/10.1016/j.atmosenv.2022.118995
- Gas-particle partitioning of low-molecular-weight organic acids in suburban Shanghai: Insight into measured Henry's law constants dependent on relative humidity Y. Yao et al. https://doi.org/10.1016/j.scitotenv.2024.173636
- Sources of elevated organic acids in the mountainous background atmosphere of southern China Y. Guo et al. https://doi.org/10.1016/j.scitotenv.2023.169673
- Direct Measurements of Covalently Bonded Sulfuric Anhydrides from Gas-Phase Reactions of SO3 with Acids under Ambient Conditions A. Kumar et al. https://doi.org/10.1021/jacs.4c04531
- pH affects the aqueous-phase nitrate-mediated photooxidation of phenolic compounds: implications for brown carbon formation and evolution J. Yang et al. https://doi.org/10.1039/D2EM00004K
- High Time Resolution Ambient Observations of Gas-Phase Perfluoroalkyl Carboxylic Acids: Implications for Atmospheric Sources C. Young et al. https://doi.org/10.1021/acs.estlett.4c00897
- Deployment and evaluation of an NH4+∕ H3O+ reagent ion switching chemical ionization mass spectrometer for the detection of reduced and oxygenated gas-phase organic compounds C. Zang & M. Willis https://doi.org/10.5194/amt-18-17-2025
- Gasphasenbildung von Schwefliger Säure (H2SO3) in der Atmosphäre T. Berndt et al. https://doi.org/10.1002/ange.202405572
- Gas‐Phase Formation of Sulfurous Acid (H2SO3) in the Atmosphere T. Berndt et al. https://doi.org/10.1002/anie.202405572
- Aerosol scavenging in DC3 and SEAC4RS deep convective storms M. Barth et al. https://doi.org/10.5194/acp-26-9907-2026
- Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements Y. Chen et al. https://doi.org/10.5194/acp-20-8421-2020
- Low-Molecular-Weight Carboxylic Acids in the Southeastern U.S.: Formation, Partitioning, and Implications for Organic Aerosol Aging Y. Chen et al. https://doi.org/10.1021/acs.est.1c01413
- Recent advances in mass spectrometry techniques for atmospheric chemistry research on molecular‐level W. Zhang et al. https://doi.org/10.1002/mas.21857
- A vacuum ultraviolet ion source (VUV-IS) for iodide–chemical ionization mass spectrometry: a substitute for radioactive ion sources Y. Ji et al. https://doi.org/10.5194/amt-13-3683-2020
- Kinetics of Hydroperoxymethyl Acetate with Carbonyl Oxide and OH Radicals: Implications for Atmospheric Chemistry J. Zhang & B. Long https://doi.org/10.1021/acs.jpca.5c06576
- Noncombustion Emissions of Organic Acids at a Site near Boise, Idaho A. Lindsay et al. https://doi.org/10.1021/acsestair.4c00138
- Role of Gas-Phase Halogen Bonding in Ambient Chemical Ionization Mass Spectrometry Utilizing Iodine J. Ganske et al. https://doi.org/10.1021/acsearthspacechem.9b00030
- Online detection of airborne nanoparticle composition with mass spectrometry: Recent advances, challenges, and opportunities X. Li et al. https://doi.org/10.1016/j.trac.2023.117195
- Chemical ionization mass spectrometry: Developments and applications for on-line characterization of atmospheric aerosols and trace gases Y. Zhang et al. https://doi.org/10.1016/j.trac.2023.117353
Saved (final revised paper)
Latest update: 26 Sep 2026
Short summary
The sources and atmospheric chemistry of gas-phase organic acids are currently poorly understood, due in part to the limited range of measurement techniques available. We evaluated the use of SF6− as a sensitive and selective chemical ionization reagent ion for real-time measurements of gas-phase organic acids at a rural site in Yorkville, Georgia. We found that ambient concentrations of organic acids ranged from a few ppt to several ppb, and are dependent on ambient temperature.
The sources and atmospheric chemistry of gas-phase organic acids are currently poorly...
