Experiment: UCR-CECERT-APL-Cocker Group_20110411_Ethene/NO/toluene_Hydroxyl radical_No Seed_EPA1407A - Esther


Name: UCR-CECERT-APL-Cocker Group_20110411_Ethene/NO/toluene_Hydroxyl radical_No Seed_EPA1407A - Esther
Date: 2011-04-11


EPA chamber

Experiment Set
Sara Li_Old test

Photo-oxidation of ethylene with the existence of NO and Toluene

Targets: ethylene 1ppm, NO 15ppb (both), toluene 300 ppb (A) INSTRUMENTS: GC1,2, SMPS, CEAS

Additional Notes
East bag leaky

Experiment Details


  • Photolysis, any phase
  • Aerosol formation
  • Aerosol aging
Temperature: 28
Relative Humidity: 0.01
Seeded Experiment: No
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 0.01
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: N/A (molecules_per_cubic_centimeter)
RO2 Main Fate: Not Sure
RO2 Lifetime: (Seconds)
Pressure: 0.015'' H2O

Data Set plots
Choose a file: Choose the X-Axis:

Experiment Set Details

Name: Sara Li_Old test
Time format and units:
To investigate the SOA yield from DEGEE in low NOx condition.



Principal investigator:

David Cocker
E-mail: dcocker@engr.ucr.edu

Data Manager:

Chen Le
Phone: 9516603455
E-mail: cle030@ucr.edu


Reactant Compound type Concentration Concentration units
Ethene 1 Parts Per Million
  • NOx
15 Parts Per Billion
toluene 300 Parts Per Billion

20110411_EPA 1407 Toluene + Ethene + NO_TimeLine.csv Timeline

Time (America/Los_Angeles) Action
09:44 Esther; Ethene 1 ppm A and B; Toluene 0.3 ppm A; NO 15 ppb A and B
09:45 Inject 100uL PF into both bags
09:46 NO/CO span starts; flow 2|40.0|off|40.0
10:10 Teco2 NO 99.95; NOx 98.58; CO 9.70; GPT span starts; flow 2|40|2.00|40.0
10:13 West side Air Handlers on; Heaters on
10:18 Inject 617 Torr ethene (0.2077 L bulb) to both bags
10:33 Teco2 NO 20.21; NOx 90.82; O3 span starts; flow 2.00|40.0|2.00|off
10:47 O3 #2 84.47; Starting E--W--Z sampling
11:02 Inject NO 5.8 torr (326 cc) to both bags
11:18 Mix W-E bag for 6 mins
11:37 Close valve 14
11:42 Inject 110uL toluene into west bag
12:14 Mix West bag for 1 min
12:48 Heaters off; Blacklights on
15:03 GPT span starts; flow 2.00|40.0|2.00|40.0
15:19 Teco2 NO 21.34; NOx 92.87; CO 9.69; NO2/PAN NO2 176.53
15:21 Lower elevator press limit to 0.01" H2O
18:51 BL off + West heater on
18:55 CEAS tube S.P. 300 C
19:08 CEAS tube S.P. 400 C
19:22 CEAS tube S.P. 500 C
19:37 CEAS tube S.P. off
19:45 End of experiment (W:999s; E:999s)

Light Flux Characterizations:
Particle Loss Characterizations:
Vapor Loss Characterizations:

Chamber Details

Name: EPA chamber
Volume in cubic meters: 84.2
Shape: Rectangular Prism
Surface area in cubic meters: 126
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness: 2
Replacement date: 2017-11-07
Replacement frequency: As needed
Cleaning method: Flushing with air Flushing with air with UV lights on Oxidation Wipe with ultra-pure water if needed
o3 background: 10
nox background: 0
Particle background in micrograms per cubic meter: 0
Air filtration method: The chamber is using zero air from our air purification system
Mixing method: 0
Mixing method material:
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 5
Temparature range (max degrees celcius): 45
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 0.01
Relative humidity range (max percent): 80
Particle experiment capability: 1
Lights: Yes
Light source type(s): 350nm UVA Black Lamps
Supplemental information:
Additional Notes: