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 minutes 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

To Access Resource:

Questions? Email Resource Support Contact:

  • Bob Dattore
    dattore@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

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

Keywords

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

Related Resource #1 : ICARUS Dataset at UC-Davis
Additional Information N/A
Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 0.00 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name Bob Dattore
Resource Support Email dattore@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive

Author Wennberg, Paul O.
Seinfeld, John H.
Crounse, John D.
Nguyen, Tran B.
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2021-10-12
Digital Object Identifier (DOI) https://doi.org/10.5065/s7bm-r313
Alternate Identifier d789042
Resource Version N/A
Topic Category environment
Progress completed
Metadata Date 2025-06-20T02:05:02Z
Metadata Record Identifier edu.ucar.rda::d789042
Metadata Language eng; USA
Suggested Citation Wennberg, Paul O., Seinfeld, John H., Crounse, John D., Nguyen, Tran B.. (2021). ICARUS Chamber Experiment: 2014 FIXCIT Study_20140103_ISOPRENE/nitric oxide/hydrogen peroxide_Hydroxyl radical_No Seed_Isoprene + OH, high NO, dry, no seeds. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/s7bm-r313. Accessed 22 June 2025.

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