Aug 23, 2023

ICARUS Chamber Experiment: Nguyen Group_20210322_ALPHA-PINENE/OZONE/hydrogen peroxide_Ozone_N/A

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Version: 20230823-020108

Goals:
To quantify the nitrooxy-hydroperoxide yield and the SOA yield from nighttime RO2+HO2-dominated NO3-initiated chemistry of a-pinene by adding H2O2 + ozone + NO2 to the chamber. This experiment was predominantly to collect a filter to analyze the chemical content of pinene ozonolysis SOA by offline HRMS.

Summary:
H2O2 and O3 were injected in the chamber and allowed to equilibrate. Then a-pinene was injected and decayed by reaction with ozone. The first pinene injection (100 ppb) didn't produce enough SOA for a good filter to analyze by HRMS, so more pinene was injected (150 ppb) over two periods until SOA produced was >200 ug/m3. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS. After all injections, a filter was collected for offline HRMS analysis.

Organization: Nguyen Group
Lab Affiliation: UC Davis
Chamber: Tran's big bag of air

Experiment Category: Gas phase chemical reaction, Aerosol formation
Oxidant: Ozone
Reactants: ALPHA-PINENE, OZONE, hydrogen peroxide
Reaction Type: Dark oxidation
Relative Humidity: 5
Temperature: 22
Seed Name: N/A
Pressure: 755 Torr

DOI: https://doi.org/10.5065/my7e-2b85

ICARUS Experiment Details: https://icarus.ucdavis.edu/experiment/589

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Temporal Range: 2021-03-22 to 2021-03-22

Related Links: N/A

GCMD Science Keywords

GCMD Instruments

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Support Contact

Bates, Kelvin
Nguyen Group
kelvinhbates@gmail.com

Data Curator

GDEX Curator
UCAR/NCAR - GDEX
gdex@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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Authors: Nguyen, Tran

Publisher

ICARUS Community

Suggested Citation: Nguyen, Tran. (2023). ICARUS Chamber Experiment: Nguyen Group_20210322_ALPHA-PINENE/OZONE/hydrogen peroxide_Ozone_N/A. Version 20230823-020108. ICARUS Community. https://doi.org/10.5065/my7e-2b85. Accessed 08 Nov 2024.

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