Experiment: UCR-CECERT-APL-Cocker Group_20110413_PROPYLENE/NO_Hydroxyl radical_No Seed_EPA1409A - Annie


Name: UCR-CECERT-APL-Cocker Group_20110413_PROPYLENE/NO_Hydroxyl radical_No Seed_EPA1409A - Annie
Date: 2011-04-13


EPA chamber

Experiment Set
Sara Li_Old test

Photo-oxidation of propene with the existence of NO under black lights

Targets: propene 300ppb, NO 15ppb INSTRUMENTS: GC1,2, SMPS, CEAS

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: HO2
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
PROPYLENE (8252) 300 Parts Per Billion
  • NOx
15 Parts Per Billion

20110413_EPA 1409 Propylene + NO An BL_TimeLine.csv Timeline

Time (America/Los_Angeles) Action
09:20 Annie NO 15 ppb in both; propylene 300 ppb both
09:21 NO/CO span starts; flow 2|40|xx|60.0
09:46 Teco2 NO 99.71; NOx 97.75; CO 9.70; GPT span starts; flow 2|40|2.00|40.0
09:46 Inject 100uL PF into both bag
10:21 Teco2 NO 20.36; NOx 89.5; CO 9.68; O3 span starts; flow 2|40|2.00|off
10:47 O3 #2 85.96; Starting E--W--Z sampling
10:54 Fill air off; Air Handlers on; Heaters on
10:56 Redo GPT (purge N2 to CEAS disconnected and fixed)
10:58 Inject NO 9.3 torr (207.7 cc) to both bags
11:14 Mix W-E bag for 7 mins
11:25 Teco2 NO 18.36; NOx 89.11; CO 9.68; NO2/PAN NO2 196.57
11:26 Start E--W--Z sampling
11:27 Close valve 14
11:35 Inject propylene 50 torr (392.2 cc) to West bag
11:54 Inject propylene 38 torr (514.62 cc) to East bag
12:08 Mix bags internally for 1 min
12:50 Heaters off; Blacklights on
16:22 Teco2 NO 19.73; NOx 89.45; CO 9.67; NO2/PAN NO2 187.92
19:59 CEAS tube S.P. 300 C
20:20 CEAS tube S.P. 290 C
20:30 CEAS tube S.P. 400 C
20:48 CEAS tube S.P. 450 C
20:59 Blacklights off
21:00 Start GPT span
21:12 Teco2 NO 20.61; NOx 93.6; CO 9.68
21:13 Start zero span

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: