Experiment: UCR-CECERT-APL-Cocker Group_20110423_b-caryophyllene/2-butanol/ISOPRENE_Ozone_No Seed_EPA1419B - Esther


Name: UCR-CECERT-APL-Cocker Group_20110423_b-caryophyllene/2-butanol/ISOPRENE_Ozone_No Seed_EPA1419B - Esther
Date: 2011-04-23


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
  • Blank/Control
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

20110423_EPA1419_TimeLine.csv Timeline

Time (America/Los_Angeles) Action
09:34 NO/CO span flow 2|40|off|40
09:45 Inject 7.8 uL B-cary to both bags
09:57 NO 95.46; NOx 94.29; CO 9.33
09:58 Start GPT span flow 2|40|2|40
10:13 NO 21.39; NOx 86.72
10:14 O3 span flow 2|40|2|off
10:33 O3 #2 80.57
10:34 Start E-W-Z sampling
10:35 Inject 100 uL perfluorohexane to both bags
10:39 Inject 172.5 uL isoprene
10:55 Inject 1000 uL 2-butanol to both bags
11:06 Mix E-W bags for 6 min
11:22 Close valve 14
11:23 Inject O3 @ 26 psi to E bag for 21 min
11:40 (approx. time) air handler stopped work
11:44 Inject _ West _ (unclear; no injection filled into written "__" in logbook
19:16 BL on

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: