Experiment: UCR-CECERT-APL-Cocker Group_20110427_b-caryophyllene/2-butanol/ISOPRENE_Ozone_No Seed_EPA1423A - Esther


Name: UCR-CECERT-APL-Cocker Group_20110427_b-caryophyllene/2-butanol/ISOPRENE_Ozone_No Seed_EPA1423A - Esther
Date: 2011-04-27


EPA chamber

Experiment Set
Sara Li_Old test

Dark-oxidation of b-caryophyllene with the existence of O3, isoprene and 2-butanol under black lights

Targets: b-cary 5ppb O3 300ppb isoprene 0.25ppm 2-butanol 1.58ppm INSTRUMENTS: GC, SMPS, AMS, VTDMA, APM

Experiment Details


  • 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: Ozone
Initial Oxidant Concentration Value: 300 (parts_per_billion)
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
b-caryophyllene 5 Parts Per Billion
2-butanol 1.58 Parts Per Million
ISOPRENE (6557) 250 Parts Per Billion

20110427_EPA1423_TimeLine.csv Timeline

Time (America/Los_Angeles) Action
09:15 NO/CO span flow 2|40|off|40
09:20 Inject 7.8 uL B-cary to both bags
09:30 NO 93.90; NOx 93.51; CO 9.40
09:41 GPT span flow 2|40|2|40
09:49 NO 20.70; NOx 87.26; CO 9.41
09:50 O3 span flow 2|40|2|off
10:15 O3 #2 79.59
10:16 Start E-W-Z sampling
10:19 Inject 100 uL perfluorohexane to both bags
10:29 Inject 172.5 uL isoprene to both bags
10:54 Inject 1000 uL 2-butanol to both bags
10:57 Mix E-W for 6:44
11:52 Fill air off
12:12 Close valve 14
12:15 Inject O3 @ 26 psi to E bag for 20 min
12:35 Inject __ W __ (unclear; logbook written __)
17:05 BL on
20:45 BL off

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: