ICARUS Chamber Experiment: 2014 FIXCIT Study_20140103_ISOPRENE/nitric oxide/hydrogen peroxide_Hydroxyl radical_No Seed_Isoprene + OH, high NO, dry, no seeds

Goals: High NO isoprene oxidation experiment. Interested mainly in working out chamber method for high-NOx condition with this many instruments.

Summary: Isoprene injection was conducted as the first step in the consideration of OH reactivity measurement. H2O2 injection proceeded as normally. 4.5 min NO injection was conducted to obtain 500 ppb NO level in the chamber. After approximately 30-45 minutes of sampling, instruments reported stable backgrounds so the UV lights were turned on. We have 50% lights on for the high-NOx conditions to slow down the isoprene decay. The bag was not very puffy when instruments started to sample for the background before lights on. For future runs, it might be better to fill the bag before background sampling started. This means the initial concentrations of all the precursors should be ~ 15% higher than the final desired values. I/A CIMS detected a signal at m/z 90 and they confirmed that this signal is oxalic acid. This might be resulted from the last experiment we did with HCHO injection involved.

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

Experiment Category: Gas phase chemical reaction Oxidant: Hydroxyl radical Reactants: ISOPRENE, nitric oxide, hydrogen peroxide Reaction Type: Photooxidation Relative Humidity: 5 Temperature: 26 Pressure: 750 Torr

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Questions? Email Resource Support Contact:

  • Nguyen, Tran
    2014 FIXCIT Study

Temporal Range

  • Begin:  2014-01-03
    End:  2014-01-03


Resource Type dataset
Temporal Range Begin 2014-01-03
Temporal Range End 2014-01-03
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
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?

Additional Information N/A
Resource Format Compressed Archive File (application/zip)
Standardized Resource Format Archive
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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.
Software Implementation Language N/A

Resource Support Name Nguyen, Tran
Resource Support Email tbn@ucdavis.edu
Resource Support Organization 2014 FIXCIT Study
Distributor N/A
Metadata Contact Name GDEX Curator
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization UCAR/NCAR - GDEX

Author Wennberg, Paul
Seinfeld, John
Crounse, John
Nguyen, Tran
Publisher ICARUS Community
Publication Date 2021-10-12
Digital Object Identifier (DOI) https://doi.org/10.5065/s7bm-r313
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2022-01-27T09:12:22-07:00
Metadata Record Identifier edu.ucar.gdex::4be050f0-55fb-4ffc-9f20-b18f1ba934d7
Metadata Language eng; USA
Suggested Citation Wennberg, Paul, Seinfeld, John, Crounse, John, Nguyen, Tran. (2021). ICARUS Chamber Experiment: 2014 FIXCIT Study_20140103_ISOPRENE/nitric oxide/hydrogen peroxide_Hydroxyl radical_No Seed_Isoprene + OH, high NO, dry, no seeds. ICARUS Community. https://doi.org/10.5065/s7bm-r313. Accessed 09 December 2023.

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