---
experiment:
    id: '591'
    experiment_category:
        - 'Gas phase chemical reaction'
        - 'Aerosol formation'
    experiment_date: '2021-03-12'
    temperature: '22'
    relative_humidity: '5'
    seeded_experiment: ''
    type_of_seed: 'N/A'
    seed_concentration_units: 'micrograms_per_cubic_meter'
    initial_seed_concentration_value: ''
    fuchs_adjusted_surface_area: ''
    reaction_type:
        - 'Dark oxidation'
    oxidant_name: 'Nitrate radical'
    ro2_main_fate: 'RO2'
    ro2_lifetime_seconds: ''
    experiment_goals: 'To quantify the nitrooxy-hydroperoxide yield and the SOA yield from nighttime RO2+RO2-dominated NO3-initiated chemistry of a-pinene using N2O5. This experiment was predominantly to collect a filter to analyze the chemical content of pinene+NO3 RO2+RO2 SOA by offline HRMS.'
    experiment_summary: 'a-pinene was injected into the chamber, followed by N2O5, which quickly dissociated to NO2 and NO3. a-pinene decayed rapidly by reaction with NO3. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS. After all injections, a filter was collected for offline HRMS analysis.'
    additional_notes: ''
    light_flux_characterization_id: ''
    particle_loss_characterization_id: ''
    vapor_loss_characterization_id: ''
    data_file_original_name: '210312_timeline.csv'
    oxidant_concentration_units: 'parts_per_trillion'
    initial_oxidant_concentration_value: ''
    reactants:
        -
            is_aerosol: ''
            pubchem_cid: '6654'
            reactant_name: 'ALPHA-PINENE'
            not_in_pubchem: ''
            functional_group:
                - 'Alkene'
                - 'Cycloalkene'
            concentration_units: 'parts_per_billion'
            functional_group_other: ''
            initial_concentration_value: '165'
        -
            is_aerosol: ''
            pubchem_cid: '66242'
            reactant_name: 'Dinitrogen pentoxide'
            not_in_pubchem: ''
            functional_group:
                - 'NOx'
            concentration_units: 'parts_per_billion'
            functional_group_other: ''
            initial_concentration_value: '145'
    skip_headers_timeline: '1'
    condensation_sink_rate_coefficient: ''
    is_draft: ''
    pressure: '755 Torr'
    doi: 'https://doi.org/10.5065/ys87-x319'
    download_file_path: 'experiments/EXP_591.zip'
    experiment_link: 'https://icarus.ucdavis.edu/experiment/591'
    experiment_set_name: 'a-pinene nighttime chemistry'
    experiment_set_link: 'https://icarus.ucdavis.edu/experimentset/214'
    chamber_link: 'https://icarus.ucdavis.edu/chamber/552'
    chamber_name: 'Tran''s big bag of air'
    experiment_name: 'Nguyen Group_20210312_ALPHA-PINENE/Dinitrogen pentoxide_Nitrate radical_N/A'
    experiment_created_at: '2021-08-15 22:49:49'
    experiment_updated_at: '2023-08-22 01:01:28'
chamber:
    id: '552'
    name: 'Tran''s big bag of air'
    chamber_flow_mode: 'Batch'
    chamber_shape: 'Rectangular Prism'
    chamber_volume_in_cubic_meters: '10'
    chamber_surface_area_in_square_meters: '28'
    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: ''
    particle_background: ''
    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: ''
    temperature_range_max_degrees_celsius: ''
    humidity_control: '1'
    humidity_measurements_recorded: '1'
    relative_humidity_range_min_percent: ''
    relative_humidity_range_max_percent: ''
    particle_experiment_capability: '1'
    lights: '1'
    light_source_type: 'UV broadband black lights (centered at 350 nm)'
    link_to_supplemental_information: ''
    additional_notes: '40-Watt, Osram/Sylvania 350nm black lights, 48? long, T12 fluorescent; 72 bulbs, 36 each on two facing walls, with UV-reflective siding on all walls. Lights are controlled via 6 panels (3 on the right wall - top, mid, bottom - and 3 equivalent on the left wall).'
    organization_id: '559'
    created_at: '2021-08-09T19:51:32.000000Z'
    updated_at: '2021-08-11T21:26:03.000000Z'
experimentSet:
    id: '214'
    name: 'a-pinene nighttime chemistry'
    experiment_set_description: 'A series of experiments examining product yields and SOA formation from a-pinene + NO3 under conditions spanning a range of RO2 fates and under conditions designed to mimic the nighttime chemistry of the Southeast US in the summer. Two types of experiments are included: those in which the chemistry is initiated by addition of N2O5, which provides an easy NO3 source but tends to deviate from ambient conditions (i.e., no HO2 or ozone, and usually extremely high NO3 and/or RO2), and those in which the chemistry is initiated with O3 + NO2 + H2O2, which together provide conditions more closely resembling the ambient atmosphere at night (i.e., with HO2 and ozone in addition to NO3 and pinene) but have much more complex chemistry to untangle (simultaneous a-pinene + NO3, a-pinene + O3, and a-pinene + OH oxidation). For each experiment initiated with O3 + NO2 + H2O2, an additional control experiment without NO2 was run to account for this complex "background" (non-NO3) chemistry.'
    chamber_id: '552'
    created_at: '2021-08-09T21:52:12.000000Z'
    updated_at: '2023-08-23T08:01:07.000000Z'
    time_units: 'HH:MM, local time'
    publications: []
    downloadFileSize: '4186499'
    download_file_path: 'experimentSets/EXPSET_214.zip'
    collaborators:
        -
            name_first: 'Kelvin'
            name_middle: 'H'
            name_last: 'Bates'
            affiliation: 'Harvard / UC Davis'
organization:
    id: '559'
    lab_name: 'Nguyen Group'
    lab_affiliation: 'UC Davis'
    lab_currently_active: '1'
    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 ICARUS data are used in published materials, the data should be cited and the DOI for the Experiment or Experiment Set should be provided in the Data Availability statement.'
    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: '2021-08-07T00:12:10.000000Z'
    updated_at: '2021-08-07T00:12:10.000000Z'
    pi:
        -
            name_first: 'Tran'
            name_middle: 'B.'
            name_last: 'Nguyen'
            orcid: '0000-0001-9206-4359'
            phone: '5307525987'
            email: 'tbn@ucdavis.edu'
    data_manager:
        -
            name_first: 'Kelvin'
            name_middle: 'H.'
            name_last: 'Bates'
            phone: ''
            email: 'kelvinhbates@gmail.com'

---
?Time_HH:MM,Action
9:05,Instruments on
9:15,Start SMPS and CIMS
9:23,Inject pinene from tank 37 min
10:00,Stop injections; pulse mixing air
10:58,SMPS had randomly quit; Restart it
11:04,N2O5 injection with mixing air for 60 sec
11:15,Start filter A
14:50,Stop filter A
14:54,Start filter B
17:06,Stop filter B