---
instrument_id: '480'
data_file_original_name: '211203_CIMS_ppb.csv'
skip_headers: '1'
charts: ''
headers:
    - '?Time (h)'
    - 'Formic acid (ppb)'
    - 'Acetic acid (ppb)'
    - 'Glycolaldehyde (ppb)'
    - 'Hydroxyacetone (ppb)'
    - 'isoprene diol (ppb)'
dataset_id: '3774'
experiment_link: 'https://icarus.ucdavis.edu/chambers/552/experiments/695'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/552/experimentSets/226'
chamber_link: 'https://icarus.ucdavis.edu/chambers/552'
dataset_created_at: '2021-12-08 10:26:28'
dataset_updated_at: '2021-12-08 10:26:28'
instrument_link: 'https://icarus.ucdavis.edu/chambers/552/instruments/480'
instrument:
    id: '480'
    short_name: 'CF3O- CIMS: negative mode, calibrated'
    full_name: 'chemical ionization mass spectrometer w/ CF3O- reagent ion'
    manufacturer: 'Varian'
    model: '1200'
    year: ''
    data_recording_software: 'Varian workstation'
    data_analysis_software: 'Matlab'
    raw_data_time_resolution: '0.125 s'
    analysis_data_averaging: '0.5 s averages of raw data'
    detection_limit: '100 ppt'
    quantification_limit: ''
    sensitivity_to_temperature: 'minor'
    sensitivity_to_relative_humidity: 'ions are independently calibrated for RH'
    sampling_method: 'Direct sampling'
    sample_preparation_method: ''
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: '100'
    flow_rate: '2 lpm'
    tubing_material: 'FEP Teflon'
    chemical_identification_method: 'ion fragmentation in triple quadrupole'
    data_analysis_method: ''
    quantification_method: 'Baseline correction, dilution correction, humidity-dependent calibration factor'
    calibration_method: 'Compound-dependent: permeation tube, commercial or synthetic standards'
    calibration_drift_estimate: 'Low (on the order of weeks)'
    calibration_schedule: 'As Needed'
    uncertainty_estimation_method: 'Uncertainties are estimated from propagating uncertainties in the steps of the absolute calibrations'
    known_interferences: ''
    link_to_supplemental_information: 'St. Clair et al. (DOI 10.1063/1.3480552)'
    additional_notes: ''
    organization_id: '559'
    created_at: '2021-08-09T20:40:57.000000Z'
    updated_at: '2021-08-10T01:34:00.000000Z'
    column_descriptors: ''
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '0.16 in'
    what_is_measured: 'oxidized VOCs (especially alcohols, hydroperoxides, acids, nitrates)'
    measurement_uncertainty: '+/- 30% unless otherwise noted'
    measurement_units: 'ppbv unless otherwise noted'

---
?Time (h),Formic acid (ppb),Acetic acid (ppb),Glycolaldehyde (ppb),Hydroxyacetone (ppb),isoprene diol (ppb)
9.275546777,-6.011749569,24.1401602,-0.588908215,0.042659561,-0.172656327
9.376654196,-0.960836181,-6.160655211,-0.588873996,-0.025155359,-0.265281645
9.480698919,0.100998724,-4.599024154,-0.582076953,-0.062797785,-0.29808721
9.58689978,-0.32968124,-4.01406721,-0.478084693,-0.059431559,-0.227054395
9.693943566,-0.485548216,-4.349274262,-0.350228739,-0.01578908,-0.105349352
9.800276018,-0.386683167,-4.083224217,-0.240271892,-0.001400945,-0.019851146
9.905020433,-0.800408443,-4.090311398,-0.23269217,0.030531629,0.017215779
10.0112376,-1.022628536,-3.589516276,-0.232346919,0.020734037,0.019907029
10.11897572,-0.587807169,-1.729789629,-0.121767987,0.045025039,0.092458154
10.23492958,-0.306574017,0.047789992,0.074674281,-0.003851634,0.032149175
10.35113323,-0.609291643,0.574406494,0.00929843,-0.005392474,-0.002921126
10.46705623,-0.318867057,0.32377085,0.081801794,-0.006000655,0.01021578
10.58307943,0.07102191,1.562976791,0.143004181,0.019377088,-0.013802922
10.69719087,0.411036152,2.319099831,0.170976554,0.025567257,-0.030553273
10.8131501,0.938682216,2.573427862,0.152382719,-0.016815021,-0.041250003
10.93024273,1.572866988,2.4887993,0.062057869,-0.066450382,-0.046588969
11.04716223,1.431659325,3.975380078,0.180861146,-0.045273406,-0.019873381
11.15462783,1.387233084,4.942906141,0.200006234,-0.025607447,-0.042356069
11.26690614,2.157263576,5.236931018,0.292053567,0.024053203,0.026671829
11.38040979,2.373501579,5.457661967,0.272926548,-0.017187572,0.007884323
11.49398257,-0.077711356,6.185354329,0.096547448,-0.014762975,-0.060133342
11.6084318,-0.723309888,7.852755357,0.141804109,0.012555062,-0.042706566
11.72324471,-1.223598049,7.664512097,0.242497126,0.020288015,-0.033371514
11.83869328,-1.397049549,8.745933836,0.27590848,0.015734507,0.008639613
11.95388221,-1.009044695,9.024869702,0.321215769,0.042945894,0.026787556
12.06284839,-0.398567764,11.38823333,0.48048023,0.111027348,0.074593521
12.16839581,0.041672458,12.02619057,0.602592968,0.082901664,0.119519109
12.27255122,0.368639898,14.08520819,0.861043057,0.184083679,0.152893656
12.37737793,1.392927894,14.78655059,0.918812658,0.208173393,0.224111372
12.48276307,2.234787764,15.50208938,1.078034951,0.226635031,0.272340456
12.58775441,2.972131182,15.6943171,1.221677236,0.317883953,0.333107023
12.69396955,3.88814116,18.21536778,1.370680902,0.317914332,0.431252363
12.80815753,5.173157258,18.00042637,1.550587683,0.378277096,0.507403059
12.92406584,6.203371691,21.19048115,1.85126413,0.394712028,0.622378227
13.03809346,7.253363895,21.06640669,2.07620475,0.455108749,0.771021737
13.15242253,8.864864772,23.14299789,2.437869289,0.55822299,0.81896391
13.26695506,11.24159823,25.27241782,2.720644355,0.621088633,0.972303277
13.3817822,13.37992201,27.82578732,3.103321242,0.791850088,1.272527427
13.49694658,16.0557744,28.91621773,3.416806473,0.833866827,1.373262868
13.61147531,17.54072331,31.05356545,4.09799008,0.945263155,1.439842424
13.72442363,19.8037005,33.70611548,4.056320607,0.940676372,1.549729457
13.83778139,19.80084658,31.74197231,4.089229379,1.077028482,1.747605991
13.95207106,20.80071206,35.39019842,4.511618394,1.140576823,1.902529454
14.06557908,21.35752196,35.69237026,5.149216335,1.225906005,2.079156514
15.32341906,29.11555712,45.66034505,7.864007957,2.177941621,4.1182994
15.43841129,28.93866663,46.97719237,7.914027828,2.242826024,4.346471918
15.55324001,30.14791496,46.77635092,7.890556117,2.194853332,4.573572481
15.66804287,30.83386719,48.7860953,7.98807147,2.305425922,4.599536359
15.78343669,29.27940553,49.1197277,8.608112497,2.398858533,4.853310174
15.89824457,30.96276489,48.68290745,8.553884558,2.438388329,5.011944472
16.0129665,31.16069701,50.99715957,8.742825746,2.421836298,5.144265284
16.12709867,31.3031587,49.54621596,9.063251361,2.681420438,5.366663369
16.24042017,32.31769125,51.19809177,9.331464161,2.67969671,5.461029281
16.35327201,32.74262337,52.23292874,9.603456249,2.806066872,5.662878509
16.46751982,33.05694256,53.44232923,9.898883533,2.85389369,5.888276555
16.58344705,33.86084441,52.38884172,9.881640315,2.807935306,5.7849341