---
experiment:
    id: '409'
    experiment_category:
        - 'Gas phase chemical reaction'
    experiment_date: '2014-01-29'
    temperature: '25'
    relative_humidity: '58'
    seeded_experiment: ''
    type_of_seed: ''
    seed_concentration_units: ''
    initial_seed_concentration_value: ''
    fuchs_adjusted_surface_area: ''
    reaction_type:
        - 'Photooxidation'
    oxidant_name: 'Ozone'
    ro2_main_fate: 'Not Sure'
    ro2_lifetime_seconds: ''
    experiment_goals: 'To measure HCHO yields from isoprene + O3 with humidity.  To continue the diagnosis of the OH artifact in GTHOS.'
    experiment_summary: 'The additions of the reagents went well and preliminary reports from experimenters confirmed the presence of the expected products.'
    additional_notes: "Instrument Status:\r\nTD LIF - up\r\nPTRMS - up\r\nCRM OHR - up\r\nGTHOS - up\r\nLIF OHR - off \r\nNO CL - up\r\nGLY LIP - up \r\nFOR LIF - up \r\nI/A CIMS - up\r\nNCIMS - up\r\nRHTO3 - up\r\nGC FID - up\r\nAMS - up\r\nTQC1 - up\r\nTQC2 - up\r\nTOFCIMS - up\r\n\r\nBag Additions:\r\n100 ppbv isoprene, 610 ppb O3, ~50 ppm cyclohexane, ~50% RH.\r\n\r\nTimeline (UTC, hrs):\r\n14:49 - Start O3/T/RH/NOx monitors\r\n15:00 -  Start adding humidity\r\n16:45 -  Stop adding humidity and started adding air\r\n16:57 -  Air addition stopped\r\n16:58 -  Start O3 addition\r\n18:36 -  Air addition started\r\n18:39 -  Air additions stopped\r\n18:45 -  Stop O3 addition, injection line purge continued\r\n19:09 -  Start cyclohexane addition: 5.5 mL, with heat gun\r\n19:14 -  Stop cyclohexane addition; All instruments begin sampling\r\n19:26 -  Flow through injection blub stopped\r\n19:48 -  Start isoprene addition (10 uL)\r\n19:58 -  All addition flows stopped\r\n24:30 -  Temperature increase to 40 C started\r\n25:04 -  Heat ramp started to 40 C\r\n25:30 -  Temperature reached 39.7 C.  Set to 25 C and instruments stopped sampling"
    light_flux_characterization_id: ''
    particle_loss_characterization_id: ''
    vapor_loss_characterization_id: ''
    data_file_original_name: '20140129_expTimeline.csv'
    oxidant_concentration_units: 'parts_per_billion'
    initial_oxidant_concentration_value: '610'
    reactants:
        -
            is_aerosol: ''
            pubchem_cid: ''
            reactant_name: 'isoprene'
            not_in_pubchem: ''
            functional_group:
                - 'Alkene'
            concentration_units: 'parts_per_billion'
            functional_group_other: ''
            initial_concentration_value: '91'
        -
            is_aerosol: ''
            pubchem_cid: ''
            reactant_name: 'ozone'
            not_in_pubchem: ''
            functional_group: []
            concentration_units: 'parts_per_billion'
            functional_group_other: 'oxidant'
            initial_concentration_value: '610'
        -
            is_aerosol: ''
            pubchem_cid: ''
            reactant_name: 'CYCLOHEXANE'
            not_in_pubchem: ''
            functional_group:
                - 'Alkane'
            concentration_units: 'parts_per_million'
            functional_group_other: ''
            initial_concentration_value: '50'
    skip_headers_timeline: '1'
    condensation_sink_rate_coefficient: ''
    is_draft: ''
    pressure: '750 Torr'
    doi: 'https://doi.org/10.5065/vs87-zn46'
    download_file_path: 'experiments/EXP_409.zip'
    experiment_link: 'https://icarus.ucdavis.edu/experiment/409'
    experiment_set_name: 'FIXCIT experiments'
    experiment_set_link: 'https://icarus.ucdavis.edu/experimentset/162'
    chamber_link: 'https://icarus.ucdavis.edu/chamber/545'
    chamber_name: 'Seinfeld chambers'
    experiment_name: '2014 FIXCIT Study_20140129_isoprene/ozone/CYCLOHEXANE_Ozone_No Seed_Isoprene + O3, cyclohexane OH scrubber, 50% humidity, no seeds'
    experiment_created_at: '2020-09-08 10:31:40'
    experiment_updated_at: '2021-10-07 00:57:12'
chamber:
    id: '545'
    name: 'Seinfeld chambers'
    chamber_flow_mode: 'Batch'
    chamber_shape: 'Rectangular Prism'
    chamber_volume_in_cubic_meters: '22'
    chamber_surface_area_in_square_meters: '48'
    flow_through_rate_in_liters_per_minute: ''
    chamber_body_material: 'Teflon'
    chamber_body_thickness_in_mils: '2'
    bag_replacement_date: ''
    bag_replacement_frequency: 'As needed'
    chamber_cleaning_method:
        - 'Flushing with air'
        - 'Flushing with air with UV lights on'
        - 'Oxidation'
    o3_background: '< 0.5 ppb'
    nox_background: '40 ppt'
    particle_background: '< 0.01 ug/m3'
    air_filtration_method: 'Custom filtration canisters to remove NOx, hydrocarbons, water, particles, ozone, SOx from pressurized ambient air.'
    mixing_fans: '1'
    mixing_fan_material: 'Pulsed air jets, manually actuated'
    temperature_control: '1'
    temperature_measurements_recorded: '1'
    temperature_range_min_degrees_celsius: '10'
    temperature_range_max_degrees_celsius: '45'
    humidity_control: '1'
    humidity_measurements_recorded: '1'
    relative_humidity_range_min_percent: '4'
    relative_humidity_range_max_percent: '90'
    particle_experiment_capability: '1'
    lights: '1'
    light_source_type: 'UV black lamps (350 nm centered)'
    link_to_supplemental_information: 'https://www.worldscientific.com/doi/abs/10.1142/9789813147355_0001'
    additional_notes: ''
    organization_id: '551'
    created_at: '2020-01-10T00:38:23.000000Z'
    updated_at: '2020-01-14T06:45:36.000000Z'
experimentSet:
    id: '162'
    name: 'FIXCIT experiments'
    experiment_set_description: 'The Focused Isoprene eXperiment at the California Institute of Technology (FIXCIT) was a collaborative study at the atmospheric chambers of Caltech during January 2014. FIXCIT is the laboratory component of SOAS, and is aimed toward (1) better understanding the chemical details behind ambient observations relevant to the southeastern United States, (2) advancing the knowledge of atmospheric oxidation mechanisms of important biogenic hydrocarbons, and (3) characterizing the behavior of field instrumentation using authentic standards. A series of chamber experiments was conducted to investigate the oxidation of isoprene, ?-pinene, methacrolein, pinonaldehyde, acylperoxy nitrates, isoprene hydroxy nitrates (ISOPN), isoprene hydroxy hydroperoxides (ISOPOOH), and isoprene epoxydiols (IEPOX). Pinonaldehyde and isomer-specific standards of ISOPN, ISOPOOH, and IEPOX were synthesized, enabling study of the oxidation mechanisms and instrument responses for these compounds.'
    chamber_id: '545'
    created_at: '2020-01-14T07:02:33.000000Z'
    updated_at: '2021-10-12T07:58:54.000000Z'
    time_units: 'Seconds past midnight'
    publications:
        44: 'https:/dx.doi.org/10.5194/acp-14-13531-2014'
    downloadFileSize: '52041582'
    download_file_path: 'experimentSets/EXPSET_162.zip'
    collaborators:
        -
            name_first: 'Allen'
            name_middle: 'H.'
            name_last: 'Goldstein'
            affiliation: 'UC Berkeley'
        -
            name_first: 'William'
            name_middle: 'H.'
            name_last: 'Brune'
            affiliation: 'Penn State University'
        -
            name_first: 'Ronald'
            name_middle: 'C.'
            name_last: 'Cohen'
            affiliation: 'UC Berkeley'
        -
            name_first: 'Delphine'
            name_middle: 'K.'
            name_last: 'Farmer'
            affiliation: 'Colorado State University'
        -
            name_first: 'Manjula'
            name_middle: 'R.'
            name_last: 'Canagaratna'
            affiliation: 'Aerodyne'
        -
            name_first: 'Douglas'
            name_middle: 'R.'
            name_last: 'Worsnop'
            affiliation: 'Aerodyne'
        -
            name_first: 'Jose'
            name_middle: 'L.'
            name_last: 'Jimenez'
            affiliation: 'University of Colorado Boulder'
        -
            name_first: 'Frank'
            name_middle: 'N.'
            name_last: 'Keutsch'
            affiliation: 'Harvard'
        -
            name_first: 'Saewung'
            name_middle: ''
            name_last: 'Kim'
            affiliation: 'UC Irvine'
        -
            name_first: 'Alex'
            name_middle: 'B.'
            name_last: 'Guenther'
            affiliation: 'UC Irvine'
        -
            name_first: 'John'
            name_middle: 'E.'
            name_last: 'Mak'
            affiliation: 'SUNY Stonybrook'
        -
            name_first: 'Geoffrey'
            name_middle: 'S.'
            name_last: 'Tyndall'
            affiliation: 'NCAR'
        -
            name_first: 'Denise'
            name_middle: 'D.'
            name_last: 'Montzka'
            affiliation: 'NCAR'
        -
            name_first: 'Andrew'
            name_middle: 'J.'
            name_last: 'Weinheimer'
            affiliation: 'NCAR'
        -
            name_first: 'Alam'
            name_middle: ''
            name_last: 'Hasson'
            affiliation: 'Fresno State'
organization:
    id: '551'
    lab_name: '2014 FIXCIT Study'
    lab_affiliation: 'California Institute of Technology'
    lab_currently_active: ''
    legal_constraints_statement: 'The Principal Investigator (PI) and institution retain any and all rights to the data that they generated. Use of ICARUS shared data in published materials or materials under review, including peer-reviewed publications or submissions, conference presentations, reports, and proposals, requires notification of the PI. For materials meant for dissemination that significantly depend on the data shared by specific PIs, the database user is required to offer the specific PI(s), and associated coworkers, co-authorship in said publications. When any of the ICARUS data are used in published materials, an acknowledgement statement should be included, recognizing the efforts of the ICARUS and NCAR DSET teams and support from the National Science Foundation.'
    access_constraints_statement: 'These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.'
    additional_notes: ''
    created_at: '2020-01-10T00:15:51.000000Z'
    updated_at: '2020-01-11T04:55:16.000000Z'
    pi:
        -
            name_first: 'Paul'
            name_middle: 'O.'
            name_last: 'Wennberg'
            orcid: '0000-0002-6126-3854'
            phone: '626 395 2447'
            email: 'wennberg@caltech.edu'
        -
            name_first: 'John'
            name_middle: 'H.'
            name_last: 'Seinfeld'
            orcid: '0000-0003-1344-4068'
            phone: '626-395-4635'
            email: 'seinfeld@caltech.edu'
        -
            name_first: 'John'
            name_middle: 'D.'
            name_last: 'Crounse'
            orcid: '0000-0001-5443-729X'
            phone: '626-395-8655'
            email: 'crounjd@caltech.edu'
        -
            name_first: 'Tran'
            name_middle: 'B'
            name_last: 'Nguyen'
            orcid: '0000-0001-9206-4359'
            phone: '5307525987'
            email: 'tbn@ucdavis.edu'
    data_manager:
        -
            name_first: 'Tran'
            name_middle: 'B.'
            name_last: 'Nguyen'
            phone: '5307525987'
            email: 'tbn@ucdavis.edu'

---
UTC_hr,Action
14:49,Start O3/T/RH/NOx monitors
15:00,Start adding humidity
16:45,Stop adding humidity and started adding air
16:57,Air addition stopped
16:58,Start O3 addition
18:36,Air addition started
18:39,Air additions stopped
18:45,Stop O3 addition; injection line purge continued
19:09,Start cyclohexane addition: 5.5 mL with heat gun
19:14,Stop cyclohexane addition; All instruments begin sampling
19:26,Flow through injection bulb stopped
19:48,Start isoprene addition (10 uL)
19:58,All addition flows stopped
24:30,Temperature increase to 40 C started
25:04,Heat ramp started to 40 C
25:30,Temperature reached 39.7 C.  Set to 25 C and instruments stopped sampling