Oct 12, 2021

ICARUS Chamber Experiment: 2014 FIXCIT Study_20140109_ISOPRENE/Nitrogen dioxide/Ozone/Formaldehyde_Nitrate radical_N/A_Isoprene + NO3/HO2, dry, no seed


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Version: 20211012-015757

Goals:
Explore products formed due to isoprene + NO3 oxidation when under conditions that are more relevant to the atmosphere (i.e., NO3 and HO2 are both present in the chamber like ambient conditions). Turn on lights to confirm the formation of nitrooxyhydroxyepoxide from OH oxidation of nitrooxyhydroperoxide.

Summary:
The experiment turned out well, and only a couple of instruments had an interference for formaldehyde. The NO CL monitor saw an interference and the LIF OHR saw diminished signal due to OH reacting with formaldehyde, but all other instruments ran smoothly. The LIF OHR was taken off of the experiment because the signal was too depleted to be useful. This helped save bag volume, so that the GTHOS could sample the entire experiment. Nitrooxyhydroperoxide, hydroxynitrate, and carbonylnitrate all formed in the dark and leveled off before turning on lights. When lights were turned on, nitrooxyhydroperoxide was oxidized via OH to nitrooxyhydroxyepoxide as expected.

Organization: 2014 FIXCIT Study
Lab Affiliation: California Institute of Technology
Chamber: Seinfeld chambers

Experiment Category: Gas phase chemical reaction
Oxidant: Nitrate radical
Reactants: ISOPRENE, Nitrogen dioxide, Ozone, Formaldehyde
Reaction Type: Dark oxidation
Relative Humidity: 5
Temperature: 26
Seed Name: N/A
Pressure: 750

DOI
https://doi.org/10.5065/47r8-db73
ICARUS Experiment Details
https://icarus.ucdavis.edu/experiment/399
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1 Files, 1.73 MB Total Size

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Temporal Range
2014-01-09 to 2014-01-09
Related Links
Publication - Overview of the Focused Isoprene eXperiment at the California Institute of Technology (FIXCIT): mechanistic chamber studies on the oxidation of biogenic compounds Publication - Can Isoprene Oxidation Explain High Concentrations of Atmospheric Formic and Acetic Acid over Forests?
GCMD Science Keywords
  • Atmosphere > Aerosols
  • Atmosphere > Atmospheric Chemistry > Trace Gases/Trace Species
GCMD Platform Types
  • Other > Physical Models > Laboratory > Laboratory
GCMD Instruments
  • In Situ/Laboratory Instruments > Chemical Meters/Analyzers
File Media Types
  • application/zip
Support Contact
Nguyen, Tran
2014 FIXCIT Study
tbn@ucdavis.edu

Data Curator
GDEX Curator
UCAR/NCAR - GDEX
datahelp@ucar.edu

Legal Constraints
Creative Commons Attribution 4.0 International License.
Access Constraints
These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.
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Version History
20211012-015757
20210930-015443
20210929-015206
20210808-015050
20210806-015051
20210805-015123
20201204-173549
Authors
Wennberg, Paul
Seinfeld, John
Crounse, John
Nguyen, Tran
Publisher
ICARUS Community

Suggested Citation
Wennberg, Paul, Seinfeld, John, Crounse, John, Nguyen, Tran. (2021). ICARUS Chamber Experiment: 2014 FIXCIT Study_20140109_ISOPRENE/Nitrogen dioxide/Ozone/Formaldehyde_Nitrate radical_N/A_Isoprene + NO3/HO2, dry, no seed. Version 20211012-015757. ICARUS Community. https://doi.org/10.5065/47r8-db73. Accessed 24 May 2024.
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