---
instrument_id: '392'
data_file_original_name: 'EPA2274B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '2859'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/331'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/189'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 13:00:39'
dataset_updated_at: '2021-08-26 13:00:39'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/392'
instrument:
    id: '392'
    short_name: 'NOx Box'
    full_name: 'Chemiluminescence NO-NO2-NOx Analyzer'
    manufacturer: 'Thermo Environmental'
    model: 'Model 42'
    year: '1989'
    data_recording_software: 'Labview Program'
    data_analysis_software: 'Custom Excel Program'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '60s'
    detection_limit: '0.1 ppb'
    quantification_limit: ''
    sensitivity_to_temperature: 'N/A'
    sensitivity_to_relative_humidity: 'N/A'
    sampling_method: 'Direct gas sampling'
    sample_preparation_method: 'Filter particle contents before sampling; One of the measuring streams is flowing through catalyst system to convert NOx to NO'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: ''
    tubing_material: 'FEP Teflon'
    chemical_identification_method: 'NO concentration is determined by Chemiluminescence method; NOx concentration is determined by the same method from another sample stream which flows through the catalyst box, assuming the catalyst can convert 100% of the NO2 into NO.'
    data_analysis_method: 'The raw signal is logged by the custom Labview program every second and is averaged to 1 min of the time range. Finally the data is pulled out by a custom Excel script.'
    quantification_method: '[NO2] = [NOx] - [NO].'
    calibration_method: 'Standard NO and NOx gas with known concentrations was introduced into the instrument and calibration factor is calculated based on the comparison. THIS IS DONE EVERYTIME BEFORE AN EXPERIMENT.'
    calibration_drift_estimate: 'No estimate'
    calibration_schedule: 'As Needed'
    uncertainty_estimation_method: 'N/A'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: 'N/A'
    organization_id: '547'
    created_at: '2020-02-25T10:01:39.000000Z'
    updated_at: '2020-03-27T09:37:55.000000Z'
    column_descriptors: '(b) Experimental_Time = relative time, t=0 is defined as the start of the reaction (dark) or light given time (BL/Arc).'
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'NOx Concentrations'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (+/- ?%); (d) NO2_Concentration (+/- ?%); (e) NOx_Concentration (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (ppb); (d) NO2_Concentration (ppb); (e) NOx_Concentration (ppb)'

---
Local_Time_PST,Experimental_Time_min,NO_UNCOR_ppb,NO2_UNCOR_ppb,NOx_UNCOR_ppb
11/7/2016 9:14:00 AM,9.0000000083819,21.99707,15.576172,37.573242
11/7/2016 9:15:00 AM,10.0000000116415,22.054036,15.169271,37.223307
11/7/2016 9:29:00 AM,24.0000000153668,21.761067,14.973959,36.735026
11/7/2016 9:30:00 AM,25.0000000081491,21.402995,15.063476,36.466471
11/7/2016 9:45:00 AM,40.000000015134,21.240234,15.022787,36.263021
11/7/2016 10:14:00 AM,69.0000000153668,9.847005,25.472005,35.31901
11/7/2016 10:15:00 AM,70.0000000081491,8.927409,26.212565,35.139974
11/7/2016 10:29:00 AM,84.0000000118744,3.995768,30.403646,34.399414
11/7/2016 10:30:00 AM,85.000000015134,3.710937,30.688477,34.399414
11/7/2016 10:44:00 AM,99.0000000083819,3.279622,31.144206,34.423828
11/7/2016 10:45:00 AM,100.000000011642,3.190104,31.233724,34.423828
11/7/2016 11:14:00 AM,129.000000011874,2.38444,30.240886,32.625326
11/7/2016 11:15:00 AM,130.000000015134,2.172851,30.558269,32.73112
11/7/2016 11:29:00 AM,144.000000008382,1.489258,30.867513,32.356771
11/7/2016 11:30:00 AM,145.000000011642,1.090495,31.062825,32.15332
11/7/2016 11:44:00 AM,159.000000015367,1.228841,31.038411,32.267252
11/7/2016 11:45:00 AM,160.000000008149,1.098633,31.306966,32.405599
11/7/2016 12:14:00 PM,189.000000008382,1.147461,29.964193,31.111654
11/7/2016 12:15:00 PM,190.000000011642,1.000976,30.297852,31.298828
11/7/2016 12:29:00 PM,204.000000015367,0.594076,30.598958,31.193034
11/7/2016 12:30:00 PM,205.000000008149,0.651042,30.615234,31.266276
11/7/2016 12:44:00 PM,219.000000011874,0.349935,30.737305,31.08724
11/7/2016 12:45:00 PM,220.000000015134,0.097656,30.973308,31.070964
11/7/2016 1:14:00 PM,249.000000015367,-0.048828,30.265299,30.216471
11/7/2016 1:15:00 PM,250.000000008149,0.276693,30.330403,30.607096
11/7/2016 1:29:00 PM,264.000000011874,0.20345,30.257162,30.460612
11/7/2016 1:30:00 PM,265.000000015134,0.366211,30.753581,31.119792
11/7/2016 1:44:00 PM,279.000000008382,0.113932,30.395508,30.50944
11/7/2016 1:45:00 PM,280.000000011642,0.073242,30.623372,30.696614
11/7/2016 2:14:00 PM,309.000000011874,0.08138,30.126953,30.208333
11/7/2016 2:15:00 PM,310.000000015134,0.236003,29.939778,30.175781
11/7/2016 2:29:00 PM,324.000000008382,0.301107,30.118815,30.419922
11/7/2016 2:30:00 PM,325.000000011642,0.358073,30.216471,30.574544
11/7/2016 2:44:00 PM,339.000000015367,0.170898,30.590821,30.761719
11/7/2016 2:45:00 PM,340.000000008149,0.252279,30.647786,30.900065
