Title:

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


Description:

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


Metadata URL:

https://gdex.ucar.edu/dataset/id/3c392b40-4f23-4015-90b7-e7b6eadc62be.html