---
instrument_id: '480'
data_file_original_name: 'CIMS_ppb_210419.csv'
skip_headers: '1'
charts: ''
headers:
    - '?Time (h)'
    - 'Formic acid (ppb)'
    - 'Acetic acid (ppb)'
    - 'Glycolaldehyde (ppb)'
    - 'HMHP (ppb)'
    - 'Hydroxyacetone (ppb)'
    - 'C5H8O2 (ppb, +/-50%)'
    - '1,2-DHI (ppb)'
    - 'C4H8O3 (ppb)'
    - 'C5H10O4 (ppb, +/-50%)'
    - 'C5H12O5 (ppb, +/-50%)'
    - 'C5H11NO6 (ppb, +/-50%)'
    - 'H2O2 (ppb)'
dataset_id: '2089'
experiment_link: 'https://icarus.ucdavis.edu/chambers/552/experiments/542'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/552/experimentSets/213'
chamber_link: 'https://icarus.ucdavis.edu/chambers/552'
dataset_created_at: '2021-08-10 16:24:14'
dataset_updated_at: '2021-08-10 16:24:14'
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),HMHP (ppb),Hydroxyacetone (ppb),"C5H8O2 (ppb, +/-50%)","1,2-DHI (ppb)",C4H8O3 (ppb),"C5H10O4 (ppb, +/-50%)","C5H12O5 (ppb, +/-50%)","C5H11NO6 (ppb, +/-50%)",H2O2 (ppb)
9.196454376,1.374171168,51.50312581,1.167289528,0.367690463,1.034243336,5.658247972,0.617719127,1.037977808,0.319895753,2.149896533,0.169575551,4.618518153
9.295594968,9.361837724,20.19531036,1.113382558,0.1667791,0.633452385,4.198178843,0.376565623,1.138646113,0.119660857,1.871447246,-0.096529972,3.40871037
9.394322467,12.4665756,21.11950666,1.568723182,0.125945545,0.656464855,2.671870205,0.321181593,2.113523244,0.149549047,1.871728222,-0.089042343,3.339125876
9.49341806,15.2004827,20.55333527,1.865681345,0.11788961,0.467377629,1.610150297,0.303559966,3.187824675,0.118066767,1.721327752,-0.066554114,3.199722523
9.591800443,16.76885323,20.68601388,2.133495567,0.099601273,0.465734436,1.075639287,0.328451473,4.24399428,0.08345693,1.439980293,-0.081359896,3.190120891
9.689805691,17.64800059,20.8102824,2.224606585,0.08066497,0.406730865,0.81737101,0.375304754,4.842845109,0.081425812,1.239502261,-0.050057154,3.071911471
9.787673869,18.36460515,21.40655834,2.329160423,0.091714666,0.448746486,0.650470977,0.336116318,5.429666309,0.101045398,1.126422627,-0.070153689,2.721826182
9.887221672,18.22293056,21.6879615,2.358450855,0.105073604,0.46177674,0.541795867,2.440188377,5.800952631,0.080644989,0.939449809,-0.064526194,2.700856522
9.986345862,19.16632801,23.31024268,2.545685863,0.093746582,0.451282168,0.527653552,30.34199123,5.932892202,0.075664519,0.759301058,-0.051087899,2.871951034
10.08521283,20.82236488,22.72073186,2.586977189,0.100341624,0.501806721,0.574135853,73.22738583,6.380718626,0.089583161,0.657174955,-0.079190724,2.891896033
10.18488077,20.26813383,22.75657614,2.499007532,0.066338588,0.526365559,0.520211419,101.0395596,6.413294495,0.065894355,0.573650328,-0.116704834,2.506218734
10.28414882,21.34711965,22.70822856,2.71117607,0.066053296,0.440202935,0.558130929,106.1574303,6.69449839,0.035432427,0.484913525,-0.122115634,2.322681342
10.38360969,21.07834463,23.37639987,2.903695152,0.081553814,0.486574751,0.585863798,106.9554022,6.542405376,0.063897976,0.441768963,-0.097946783,2.249060521
10.48312658,21.21228714,23.245313,2.752148405,0.067354965,0.413989007,0.580958601,106.8821411,6.581516928,0.051922421,0.424649207,-0.134463776,2.138496527
10.58198694,21.84128894,23.56687692,2.686023913,0.047212186,0.483600365,0.598089516,107.8695303,6.98405856,0.054475006,0.367646386,-0.099223996,2.172342364
10.68019571,22.06664772,23.27052827,2.813149404,0.07648394,0.486966364,0.576736566,108.91884,7.485746599,0.077072178,0.364022366,-0.07361367,1.969336981
10.77919508,23.20010393,23.83192095,2.879286951,0.056402027,0.493519517,0.58071664,108.4135827,7.811564912,0.074950235,0.323500994,-0.095733019,1.963761864
10.87850708,23.29836084,24.00462532,2.757252548,0.03329334,0.477815372,0.548712635,105.3034463,8.148523097,0.037627938,0.276066411,-0.161459659,1.877637324
10.97455807,23.65016092,25.43982288,2.889262272,0.03591291,0.457944414,0.564159096,106.9485413,8.634755591,0.058250322,0.280333541,-0.105769202,1.817283015
11.07186023,23.71626637,24.91523879,2.872702153,0.040307515,0.452405266,0.552662301,105.6238511,9.178826975,0.046004533,0.271523485,-0.149742766,1.816680616
11.16935335,24.90459318,26.29822493,3.055405723,0.057431414,0.491516777,0.588654505,106.4528166,9.929949253,0.051768596,0.271232906,-0.111453408,1.945034173
11.26818166,24.90035467,25.03509598,2.992335179,0.034435224,0.515710589,0.54513006,105.6032835,10.29714441,0.053745402,0.261640872,-0.099913252,1.873605153
11.36660863,24.7987992,26.37068213,3.061389751,0.049982626,0.598928402,0.543102372,104.5762815,11.07821029,0.066342129,0.25949454,-0.112099887,1.729161658
11.4644005,24.7605886,26.09282265,2.976467436,0.044541282,0.577490269,0.553094963,103.9433858,11.21817462,0.067136949,0.262469255,-0.08477824,1.780343346
11.56271581,25.39244838,27.63005971,3.235902613,0.255261367,0.805192474,0.536055512,101.578202,12.07001819,0.072147033,0.267423253,-0.066605671,2.908014231
11.66032861,28.2296983,28.31516129,3.528925102,1.729621825,1.39381972,0.658554805,95.45109354,14.86304844,0.064030825,0.255967196,-0.109094466,2.839946281
11.75663557,29.15750164,29.41418358,3.675025735,3.280360029,1.987997978,0.70877913,90.50310822,17.87055482,0.067556895,0.214773951,-0.099464294,3.220598876
11.85517099,31.13371984,28.50258,3.950564117,4.37514197,2.567804606,0.709120143,86.00954832,20.44816264,0.079203839,0.275733338,-0.137472957,3.587828828
11.95335722,33.79953835,30.03330348,4.469987706,5.164756826,3.13075858,0.733031344,81.78643568,22.80072642,0.102395498,0.263686896,-0.063489046,3.806639441
12.04926366,35.31517453,29.67282814,4.473775293,6.303613867,3.7349592,0.767991193,76.21912014,24.68416731,0.107932654,0.258307981,-0.08912736,4.053596616
12.14021627,37.46355774,29.66732897,4.652312953,6.908761973,4.383381782,0.802227573,75.03490564,26.57282042,0.101822977,0.266256501,-0.084431489,4.353675781
12.23211992,38.63098581,31.34675629,4.90370995,8.071603316,4.938267099,0.782250462,71.66566935,28.78714399,0.117274516,0.241959289,-0.131840455,4.795337502
12.32896568,42.28779322,31.72588405,4.972909483,7.684141589,5.577426131,0.751267255,68.70339084,30.11387633,0.137642481,0.270149272,-0.121907093,4.692132947
12.42744214,43.77800684,32.75957889,5.308636316,7.456711451,5.929763024,0.76061595,65.33598056,31.03435508,0.128225896,0.238235878,-0.133614277,4.833137522
12.52466078,44.64678051,32.03233993,5.445334164,8.234997968,6.412150931,0.739002189,62.77216242,32.18632364,0.143708879,0.276698054,-0.10743815,4.867722988
12.62277028,46.26637766,32.76726524,5.659511307,9.126141352,6.955266152,0.795164159,60.08264457,33.78303926,0.133030842,0.271155852,-0.095893578,5.084708626
12.71850927,48.98178348,33.11580538,5.553986126,7.757585398,7.61090681,0.746100176,56.71414645,33.74936828,0.16006906,0.256191841,-0.150017225,5.126409221
12.81679377,50.40106201,33.21396674,5.836900929,7.82651551,7.746116844,0.777542035,53.45183921,34.02476615,0.154755036,0.277282518,-0.070469338,5.434383496
12.9149578,52.40999577,33.03484323,5.958895112,8.370614765,8.294456221,0.754317268,52.2554816,35.63300734,0.174982405,0.287380524,-0.081600834,5.422435835
13.01312155,55.11917034,33.9445981,6.031963665,6.918163386,8.812733989,0.691014137,49.6807704,36.08171726,0.16868119,0.272114205,-0.094482227,5.163831766
13.1109191,56.70034705,34.17419993,6.118576673,6.611844006,9.119302175,0.685450673,47.71103413,35.61647416,0.146330171,0.266143754,-0.172841896,5.06702639
13.20845429,59.20288065,35.55998241,6.39781173,5.941845682,9.769446274,0.702542263,46.10884431,35.82162005,0.146377736,0.262924077,-0.114105492,5.201375887
13.30624717,62.37817382,36.00417247,6.604765944,5.005010486,10.40887487,0.655110764,44.80032904,35.90714187,0.155875091,0.30003423,-0.064584048,4.881250137
13.40472397,63.4726332,35.74028006,6.507152771,5.416026286,10.71913256,0.644351023,42.83877498,36.31524922,0.155708328,0.256260499,-0.138845692,4.816022532
13.50299227,64.70665793,36.20275412,6.574552366,5.204140276,11.08883125,0.662646322,40.55009279,36.70661303,0.156617834,0.274081209,-0.088741635,4.841712235
13.60062945,66.2811797,35.70173066,6.772476334,5.310528238,11.46822322,0.649034412,39.35770255,37.49024189,0.174983509,0.29116579,-0.101348857,5.007002408
13.6982332,67.23294042,35.65243178,6.833846278,5.481356512,11.35308822,0.655173798,37.23551084,37.79918622,0.174990752,0.276074795,-0.134065585,4.983184026
13.79686688,66.95638319,34.82528414,6.772974163,6.338229704,11.97964475,0.650178265,35.35155917,38.45355369,0.208549164,0.286653579,-0.079886135,5.007930358
13.89426742,67.74415016,35.24740417,6.782817683,6.370685032,12.19699109,0.619575717,34.23478392,39.08874857,0.167300345,0.285863082,-0.12176139,5.177872577
13.99147743,69.95665526,36.36121811,6.934200972,6.052556463,12.71460406,0.625926469,32.68006962,39.35055016,0.193167393,0.247061912,-0.117777887,4.982382783
14.0890941,69.85570922,35.77186766,6.924658912,6.083848959,12.75055709,0.661820805,30.84841932,39.40280738,0.185292426,0.245531589,-0.117405698,4.936800158
14.18715157,72.99754174,35.48479825,6.905808708,5.946992768,13.15351357,0.626564778,29.91955566,39.50335357,0.200143631,0.287412407,-0.134914722,4.829124101
14.28457282,73.30922521,35.36779385,7.007504987,5.508637092,13.25253305,0.587233337,29.12346693,40.27011925,0.197101478,0.270728048,-0.106338203,4.858139865
14.38222529,75.42796565,36.44313094,7.112467197,5.140833729,13.74518482,0.642011023,27.69613079,40.13118078,0.206556771,0.260778113,-0.06406719,4.750765947
14.48036321,76.06086252,35.13972764,7.083439376,4.871287415,13.65939006,0.622074669,26.29858877,39.89693517,0.187846963,0.274807543,-0.095442602,4.637481765
14.57761807,75.66859633,36.45986836,7.147395548,4.822653049,13.96522178,0.60581027,25.43613568,39.55697438,0.176590032,0.256043518,-0.091596751,4.663200676
14.67510055,76.86405739,36.62493647,7.182794388,4.319282813,13.92000951,0.57402073,24.42441766,40.12173639,0.179949987,0.256589495,-0.141021466,4.241111293
14.77215717,78.3842923,36.84389016,7.133606179,4.342033562,14.66470836,0.59353393,23.80538904,40.36183083,0.241281302,0.284296246,-0.066508992,4.201145178
14.86885148,79.6343943,35.91622359,7.243099734,4.217041417,14.97994743,0.588803955,22.7032853,40.56765798,0.176530921,0.252614282,-0.127883194,4.211836191
14.96635237,78.92178223,36.12799748,7.489354965,4.036542392,15.54403765,0.603855626,21.74481494,39.98737252,0.201195576,0.275441344,-0.090196474,4.063001995
15.06358236,80.47610585,36.74370447,7.455851171,3.953866764,15.59216057,0.608788742,20.72474658,39.75618478,0.186773877,0.279735141,-0.080614413,3.755086937
15.16163509,82.35101391,36.07616455,7.50637064,3.607988306,15.46182444,0.591203357,20.2645279,40.19632337,0.175624326,0.277062643,-0.118963853,4.034292279
15.25983755,83.86381884,35.77581185,7.558137967,3.540223876,15.76349839,0.551108147,19.46052519,40.91052575,0.169300158,0.260087349,-0.127071688,3.964489154
15.35731276,84.1198572,35.28793639,7.678703727,3.486769362,16.10545639,0.524145046,18.78341319,40.82159596,0.183092176,0.249612251,-0.167872793,3.786125452
15.45556083,84.86393623,37.51939629,7.738765134,3.316260008,16.32458025,0.573397126,18.06053331,40.65200492,0.181847397,0.249367283,-0.109156555,3.75930144
15.55437539,85.04721667,37.41015547,7.887364606,3.164939229,16.21469797,0.55194424,17.55233089,40.35914673,0.176564016,0.261212249,-0.137189357,3.600818212
15.65261313,84.64756039,36.16964043,7.545140716,3.004819313,16.77416337,0.556306268,16.46997714,40.27836477,0.166228813,0.283003213,-0.109963832,3.438799783
15.750639,86.34616648,36.74859797,7.834051051,2.964811554,16.93816313,0.560096649,16.216008,40.51026337,0.192743145,0.288059964,-0.088457631,3.458524019
15.84893203,87.3078319,37.57986427,8.099836023,2.956623194,17.4297657,0.576642187,15.52362712,41.03087256,0.195622995,0.282782199,-0.101552357,3.373275758
15.94752568,89.09709422,37.31210287,7.986619877,2.7657424,17.64868301,0.546922485,15.1938134,41.53146058,0.187699787,0.259040112,-0.126185716,3.448801242
16.04558275,88.52738597,37.54742689,8.032365467,2.811521606,17.5567484,0.56240459,14.84125239,41.55302852,0.177280034,0.285493627,-0.101549794,3.095119523
16.14255482,88.89794795,34.98170519,7.741399961,2.569341069,17.71929248,0.500701826,13.89223249,41.01865189,0.165184599,0.24182309,-0.138095483,3.261253376
16.24002418,89.75590073,35.60570644,7.976384031,2.52361727,17.84593251,0.499028611,13.56957952,40.80940808,0.162257081,0.225783386,-0.156756801,3.053141993
16.30588807,82.96903908,32.6275738,7.79418981,2.445953558,17.97762772,0.50820578,13.20264749,41.18385112,0.180585448,0.240882081,-0.14059867,2.794707138
16.46524653,89.97929307,37.39576237,7.842264154,2.520953245,17.2443845,0.553705965,12.42640413,40.95669149,0.203859956,0.263779829,-0.019211108,2.958182092
16.62485009,89.90555243,38.05073483,8.278482727,2.472333042,17.92421049,0.550636841,11.91477768,41.14463078,0.215797814,0.30828045,-0.034614204,2.801989743
16.78372531,89.7716116,36.66255665,8.228876579,2.262873679,18.48825604,0.512641504,11.1341092,42.75374621,0.218676508,0.264727916,-0.027270543,2.662911152
16.9422817,89.7748178,36.60384957,8.320824248,2.365950606,18.74611453,0.568908279,10.38423112,42.44581274,0.210225842,0.318284449,-0.032574444,2.644110842