---
instrument_id: '415'
data_file_original_name: '130906_CIMS.csv'
skip_headers: '1'
charts: ''
headers:
    - 'exp_time(min)'
    - 'formic_acid(ppb)'
    - 'acetic_acid(ppb)'
    - 'PAA(ppb)'
    - 'mz145(ppb)'
    - 'hydroxyacetone(ppb)'
    - 'IEPOX(ppb)'
    - 'H2O2(ppb)'
dataset_id: '3441'
experiment_link: 'https://icarus.ucdavis.edu/chambers/553/experiments/607'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/553/experimentSets/215'
chamber_link: 'https://icarus.ucdavis.edu/chambers/553'
dataset_created_at: '2021-08-30 15:31:08'
dataset_updated_at: '2021-08-30 15:31:08'
instrument_link: 'https://icarus.ucdavis.edu/chambers/553/instruments/415'
instrument:
    id: '415'
    short_name: 'CIMS'
    full_name: 'Chemical Ionization Mass Spectrometer with CF3O-'
    manufacturer: 'Varian'
    model: '1200 triple quadrupole mass analyzer'
    year: ''
    data_recording_software: ''
    data_analysis_software: 'matlab'
    raw_data_time_resolution: '162 to 172 s'
    analysis_data_averaging: 'signal for the compound is normalized to the 86 signal'
    detection_limit: 'ppb'
    quantification_limit: ''
    sensitivity_to_temperature: ''
    sensitivity_to_relative_humidity: 'Must account for the water signals'
    sampling_method: ''
    sample_preparation_method: ''
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: ''
    tubing_material: ''
    chemical_identification_method: 'In this analysis, benzyl alcohol concentration comes from the 193 scan'
    data_analysis_method: 'To get the concentration of benzyl alcohol in ppb, one takes the 193 signal at a given time and divides by the 86 signal (interpolated to that exact time) and then uses that signal to compare to the calibrated ppb/normalized signal value'
    quantification_method: ''
    calibration_method: 'The 193 m/z signal (the mass of benzyl alcohol + CF3O-), which was measured every 162 to 172 s, was normalized to the 86 m/z signal (the M+1 peak for CF3O-) and used to measure the benzyl alcohol concentration. This signal was calibrated using dilutions of a 800 L Teflon bag of ~44 ppb benzyl alcohol. The concentration in this bag was verified using fourier transform infrared absorption (FT-IR) spectroscopy with a 19 cm pathlength and absorption cross sections from the Pacific Northwest National Laboratory (PNNL) database. In this way, any wall or sampling loss was accounted for since the CIMS sampled from the same volume as the FT-IR. Multiple FT-IR samples were taken until they gave the same concentration; this was to ensure a minimal effect from any compound deposited on the instrument walls.'
    calibration_drift_estimate: ''
    calibration_schedule: ''
    uncertainty_estimation_method: 'During the background collection period of ~1 h for each experiment, the standard deviation of the benzyl alcohol mixing ratio along with the uncertainty in the calibration was used to estimate the uncertainty of the initial benzyl alcohol mixing ratio. This combined standard deviation was also used as the uncertainty in the measurement of the time-resolved gas-phase mixing ratios throughout the experiment. Since the number that matters for the SOA yield is the reacted benzyl alcohol, which is the measured benzyl alcohol subtracted from the initial benzyl alcohol, the variance of the reacted benzyl alcohol is the sum of the variances of the initial and measured benzyl alcohol mixing ratios. The uncertainty reported is, then, the square root of the reacted benzyl alcohol mixing ratio variance.'
    known_interferences: ''
    link_to_supplemental_information: ''
    additional_notes: ''
    organization_id: '540'
    created_at: '2020-03-12T23:50:47.000000Z'
    updated_at: '2020-03-12T23:50:47.000000Z'
    column_descriptors: "Local time (reported at the time of signal 50, the rest of the signals are taken in the order they appear)\r\nBenzyl alcohol mixing ratio in ppb (found from the normalized signal, nan if it's not during the background or experiment period)\r\nUncertainty in the benzyl alcohol mixing ratio in ppb (found from the background and the calibrations)\r\nm/z signals for each m/z measured (these are not normalized)"
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: ''
    what_is_measured: 'Gas-Phase Compounds'
    measurement_uncertainty: 'For benzyl alcohol, this is given in the third column'
    measurement_units: 'ppb (otherwise, just signal)'

---
exp_time(min),formic_acid(ppb),acetic_acid(ppb),PAA(ppb),mz145(ppb),hydroxyacetone(ppb),IEPOX(ppb),H2O2(ppb)
0,-0.481239655,-1.316661377,0.017327239,-0.165008484,-0.130302283,-0.995045244,0.116206467
3.825646122,0.814372549,3.153283094,0.018322991,2.152524045,0.385539473,0.121438763,0.106542978
7.643746617,2.355887847,0.563581485,0.239105565,1.604110143,0.129925163,-1.171271071,0.285353936
11.47543383,-0.167169332,-0.589936534,-0.04088487,0.518137872,0.068463507,-2.970259439,-0.072194068
15.33436163,-0.270991547,0.700495436,0.020674574,0.711177447,0.158083673,-2.193455379,0.23048391
19.17920743,1.703181984,1.101008695,0.062854163,1.304991853,0.223855021,-0.703365717,0.338228018
23.00420033,-0.375343834,0.613594228,-0.196022654,0.568013059,0.06868119,-2.109148971,0.400091706
26.87000454,1.726374161,0.433768763,0.039244442,0.886068998,0.106068673,-2.332654799,0.375537683
30.71576023,-0.345030815,-0.133025943,0.059918611,0.84889803,0.03183551,-3.78166883,0.258473859
34.55749538,-1.131252421,-0.419856977,-0.076686413,0.976761179,0.184960428,-3.512598949,0.360014115
38.36267847,0.941830659,1.50724046,0.037567085,1.697491978,0.269067067,-0.380980348,0.577516476
42.21493028,0.895168237,0.32397381,-0.043955674,0.942435156,0.093622334,-1.043378036,0.34091178
46.04471559,0.640579401,0.323727118,-0.069865815,1.136172447,0.048123585,-2.407841282,0.420761718
49.87615652,1.216295979,0.172276944,0.010709906,0.831065103,0.256662166,-1.041473921,0.613543194
53.69539967,1.49577086,-0.100453939,0.06273502,1.22195958,-0.030299188,0.663380579,0.629691689
57.54586419,2.883806607,2.961114039,0.194042648,2.815459012,0.430036933,0.922260378,0.718385465
61.37233168,3.57397884,0.54194219,0.000326055,2.101380077,0.298246036,0.924499043,0.550918125
65.21727723,3.190279145,1.958173835,0.1268037,1.948276381,0.262634161,1.563109413,0.616276545
69.05737162,0.658476795,1.785429153,0.135476214,2.030297874,0.403108831,4.115856543,0.835785084
72.87427211,5.161614899,2.999987477,0.040827348,1.963936387,0.369615196,3.681130964,0.600506212
76.71467772,3.342710132,2.066527938,-0.012805265,2.37908474,0.312194532,5.962455463,0.701812757
80.54465726,1.196876191,1.813574441,0.070360577,2.136044968,0.268380048,4.611334885,0.830345109
84.39289637,0.693254743,1.908258084,0.172805236,2.197590547,0.3875622,6.639026394,0.809469213
88.22873936,2.323640529,1.827482248,0.121854256,2.360127955,0.492348101,10.33549382,0.872173197
92.08912904,1.908596877,1.603418314,-0.024876505,1.830155788,0.334045001,12.51688704,0.651552559
95.94976922,2.13653169,1.530361334,0.020363223,2.35366759,0.393043114,16.2024988,0.776343335
99.78758589,1.035845925,1.703415895,0.005958063,2.287531955,0.369495476,18.5582769,0.947419665
103.5893162,1.977546551,2.358057131,-0.008221217,2.15339638,0.382574471,17.48651612,0.772100203
107.4160982,2.811777056,1.419063881,0.036941728,2.187230459,0.330894495,16.90465186,0.893543243
111.2670253,0.962639406,1.809861747,0.006530599,2.584342168,0.343238779,16.97945675,0.981906523
115.1164183,2.233999334,0.85467554,0.088690638,2.216066925,0.053910248,18.46166583,0.924062778
118.9442899,1.768409893,1.78466072,0.127708917,2.348489099,0.288756558,18.40112513,0.929422693
122.7602567,1.661725899,1.127885274,0.136955997,2.014985344,0.263563828,19.51805259,0.985312039
126.5847282,0.989037008,0.723658993,-0.027793085,2.066984585,0.498572369,23.36764636,1.064287005
130.4294556,1.283905565,1.390917725,0.157744532,2.131362492,0.344017995,22.8175192,1.011738931
134.273976,1.722049241,1.299983163,0.011838197,2.432255785,0.29167166,23.61012977,1.241195747
138.0929717,0.211286753,2.681048974,-0.025954365,2.416978937,0.405523282,24.48735759,1.198425571
141.9284798,0.222107961,0.666459336,-0.028569559,1.995970358,0.60544787,29.47013668,1.276002738
145.7451672,1.261462706,1.837561483,0.136097635,2.363755203,0.479162624,35.76769458,1.439689444
149.5573074,1.018632029,0.872970725,0.002403526,2.335110105,0.276867517,42.48283156,1.248784993
153.3811858,1.179604196,2.357064911,0.083954156,2.201792902,0.499744637,46.20752815,1.556665844
157.2317597,1.17968053,2.354336352,0.037063975,2.091742086,0.46566654,48.86235762,1.397185393
161.076401,0.886533776,1.218937674,-0.055537255,2.365220795,0.544479355,50.61311151,1.320313741
164.9081149,2.287566111,2.394645217,0.002289213,2.602851972,0.443864001,61.30870989,1.337972897
168.7252565,0.871147995,1.599355141,-0.13154873,1.82343834,0.558929672,68.69555159,1.39357273
172.5574315,0.880344047,1.349430052,0.02772893,2.347414136,0.576802415,75.35759992,1.341377373
176.3589701,2.626277811,1.445415448,0.118331234,2.526401229,0.676165162,84.22525329,1.657756079
180.1804625,0.546982209,2.56163995,0.129633127,2.303157386,0.623164473,85.85544876,1.602358653
183.9953522,1.497369994,2.045349113,0.036608355,2.677749802,0.636219346,84.95993817,1.66951488
187.8279969,1.835968538,1.72095395,0.004439656,2.600770189,0.618698142,92.73173893,1.397659931
191.6596208,2.746326155,1.667970905,0.150399092,2.753027952,0.709782873,94.17230481,1.269369972
195.4967427,1.800652559,2.095480313,0.125570207,2.552485543,0.45430481,92.89723497,1.520906971
199.3917949,2.779062191,2.750030792,0.130719492,2.814677111,0.798441253,89.65039356,1.647386619
203.2958102,2.931674103,1.883747512,-0.001795293,2.504778291,0.717267786,82.23328188,1.423049448
207.1541796,2.667420279,1.521684233,0.155894798,2.374288521,0.643168102,79.38639644,1.45109953
210.9907521,1.557019234,1.637182737,0.075409499,2.735459661,0.659654597,75.88865668,1.553241582
214.7929909,1.563957491,2.099433878,0.0725295,2.534523267,0.46708764,67.46327512,1.438451596
218.6094936,3.038305254,2.018563511,0.134921628,2.322233792,0.681782248,70.12131262,1.619336105
222.4406441,3.145370249,1.93608877,0.118954693,2.798682357,0.325215319,67.58977321,1.519936634
226.2572376,2.30618525,2.701896586,0.146838201,3.168368125,0.767758934,68.46250631,1.716909844
230.059555,1.711576462,2.5381116,0.103867843,2.84006359,0.621409716,68.16548119,1.587261314
233.8844718,2.067775428,2.463915042,0.145663115,2.773550481,0.559958017,77.01103941,1.444292881
237.7095877,1.293096636,2.401140789,0.095086507,2.826600665,0.699611226,87.48391055,1.487991575
241.5296501,1.960822372,2.202237943,0.167821381,2.645338467,0.819999942,101.9053169,1.588079318
245.3573454,1.536723455,1.674626786,0.008647979,2.639010561,0.775267197,106.4363588,1.607754269
249.1996998,2.235912689,2.810844732,0.05013315,2.607508325,0.644827779,117.1256733,1.629591545
253.0390435,1.147840182,1.93756647,-0.020321387,2.653757896,0.633890835,118.1920706,1.691449352
256.8725397,1.175855457,2.611611724,0.166684727,2.568354654,0.867624724,125.3419669,1.787974823
260.6910245,1.218336254,2.462302964,-0.016924493,2.879484354,0.787398934,122.8016851,1.918547866
264.4912365,3.396256378,2.363002573,-0.013728089,3.010074512,0.744652943,121.3858301,1.722616064
268.322628,1.284804342,2.564160589,0.07484213,2.369076284,0.759764328,134.3469679,1.988158602
272.1407616,0.995771892,2.383378455,0.034012996,2.387098156,0.691572987,141.2991995,1.871691268
275.9498102,2.901071392,1.708064943,0.118278787,2.993548394,0.923365783,142.4075341,1.913418704
279.7907785,2.344898685,1.873095793,-0.093303321,2.596715618,0.603300585,132.0438604,1.676693882
283.5908603,1.216204571,1.790902953,0.054180049,2.730421812,0.705481813,118.6660709,1.802833862
287.4304261,1.128970707,1.869831202,0.229354688,2.690137993,0.881293333,112.3009578,1.676253146
291.2272893,2.076193828,2.171564778,0.108566176,2.823359363,0.736779338,106.3458863,1.711810891
295.039191,1.882313187,1.981865156,0.119091638,2.478435439,0.913502362,100.0653466,1.700649715
298.8630706,0.787735486,1.462640897,0.068140184,2.742013406,0.468125918,100.4403117,1.806604799
302.6595428,3.708592284,3.279081234,0.057558607,2.876624323,0.690744247,103.036444,1.894641929
306.4780258,1.571229999,2.569903024,0.231079365,3.048697151,0.632491648,102.5071592,1.583988338
310.3072925,2.304477241,2.37766762,0.121349625,2.846099657,0.626943086,112.5323903,1.655884484
314.1095751,2.313349717,2.122507263,-0.001962624,3.188155814,0.854409939,123.4498913,1.732703149
317.9262005,0.740625442,1.310785466,-0.171239811,3.030475877,0.625853372,121.9427138,1.393954039
321.7490097,2.029153343,2.043570269,0.137583925,3.057380697,0.703232,125.6218739,1.811129713
325.5739366,0.667883095,2.191500006,0.110902682,3.17112418,0.781588745,128.2192263,1.811546578
329.4125645,2.497693842,1.577479147,0.167579844,2.796081779,0.8917038,137.023294,1.83694427
333.2679875,1.093596767,2.139212383,0.157344225,2.972063206,0.854581687,144.456864,1.812018193
337.1011015,1.92965873,2.254415926,0.065829171,2.502531775,0.913596584,140.0366604,1.915974098
340.9141535,1.38738226,2.182411224,0.008737877,3.281177197,0.851135553,148.3797479,1.958702595
344.7408214,1.186955743,2.212321514,0.068466659,3.09475582,0.827953255,143.9028974,1.912330932
348.5460627,1.60367223,3.839611467,0.138498097,3.023474142,0.840164215,136.311751,2.000937633
352.38914,1.967578132,1.838659015,0.132512082,2.739758712,0.978480904,135.7581634,2.135715121
356.2084907,1.359000053,2.86179163,0.122791849,3.514260294,1.072964243,129.3915794,2.020677229
360.0293694,0.014966177,1.825927677,0.033372129,2.862765967,0.750266785,129.3679457,1.865102775
363.8778398,1.517730784,2.908837019,0.137881422,2.635728493,0.886631485,133.3306658,1.79466558
367.6907255,1.744984382,2.688092021,-0.005487083,2.777182809,1.01154642,133.4361997,2.24463443
371.5346633,1.61938455,2.100761101,-0.033227012,3.081011699,0.732893743,121.3380077,1.94292259
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
