ICARUS Chamber Experiment: Nguyen Group_20220629_Camphene/Ammonium Sulfate/Ozone/Hydrogen Peroxide_Ozone_Ammonium sulfate
Goals: To quantify SOA yield and gas-phase product yields from humid ozonolysis of camphene, which will serve as a "control" experiment to subtract the ozonolysis contribution to the nighttime chemistry of camphene as measured in the experiment on 6/24/22. Summary: The chamber was humidified, after which H2O2, and O3 were injected in the chamber and allowed to equilibrate. Ammonium sulfate seed particles were injected. Then camphene was injected and decayed by reaction with ozone (plus some contribution from OH). Gas phase organics were monitored by CF3O- CIMS (units: normalized counts), particle formation was monitored by SMPS, and RH/T/O3/NOx were monitored throughout. O3/NOx data sometimes require post-correction not applied here, including subtraction of an ozone interference from H2O2 (1 ppm H2O2 is detected as about 12 ppb ozone) and correction for an in-line HEPA filter (see timeline for applicable timing) that scrubs about 10% of NO2 and 45% of ozone. 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: Camphene, Ammonium Sulfate, Ozone, Hydrogen Peroxide Reaction Type: Dark oxidation Relative Humidity: 62 Temperature: 22 Seed Name: Ammonium sulfate Pressure: approx 1 atm
dataset
https://gdex.ucar.edu/dataset/id/246a8848-86af-4985-aa88-4886af49850b.html
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name: ICARUS Chamber Experiment: Nguyen Group_20220629_Camphene/Ammonium Sulfate/Ozone/Hydrogen Peroxide_Ozone_Ammonium sulfate
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Dataset
revision
2014-10-16
EARTH SCIENCE > ATMOSPHERE > AEROSOLS
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES
revision
2018-03-15
In Situ/Laboratory Instruments > Chemical Meters/Analyzers
revision
2018-03-15
2022-06-29
2022-06-29
publication
2023-03-07
modified
2023-03-07
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Nguyen Group
pointOfContact
UCAR/NCAR - GDEX
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2023-03-08T01:50:32-07:00