---
instrument_id: '415'
data_file_original_name: '130607_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: '3425'
experiment_link: 'https://icarus.ucdavis.edu/chambers/553/experiments/604'
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 15:10:19'
dataset_updated_at: '2021-08-30 15:10:19'
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)
0,0.133870784,-0.240994968,-0.109033173,0.453101196,-0.129716353,-0.702980258,4.064367266
3.899341997,0.460736057,0.806251844,0.132772465,0.748467698,0.10383137,0.705635416,5.921955792
7.766093152,0.491741206,-0.331734061,0.132121374,0.965540408,0.155166079,0.175332184,7.000789857
11.64511782,1.368445222,0.777320835,0.07693563,1.293572341,-0.011795679,1.10331539,8.224903355
15.52875041,1.603881002,0.091480069,0.087305286,1.762566738,-0.045578811,0.097859223,8.418091919
19.40457153,1.074267875,0.963944465,0.003264021,2.937298277,0.06698151,1.143304615,9.070371864
23.31231097,1.695323311,2.216948782,0.028741764,2.943591755,0.070863089,0.942332515,9.232407017
27.18736881,0.966664033,2.783845314,0.178095528,2.783599347,0.073283694,1.402296744,10.19579715
31.08521246,-0.58254411,0.376725303,-0.092779157,2.144554075,-0.007834307,0.919316271,9.64112321
34.95085165,2.289759321,2.737428385,0.049076392,3.235491052,0.236909006,3.346158109,11.92904079
38.82303655,1.996633686,1.37558562,-0.064130774,2.683226831,0.080814284,3.794555951,12.08230956
42.6559901,1.726740745,1.140736705,0.162671565,3.118655339,-0.065681096,3.064267608,11.11172049
46.5428854,1.060153244,1.291026035,-0.011650453,2.84383227,-0.056682115,4.354235505,12.51661009
50.43581064,-0.072449003,0.910541067,0.117191232,2.99322276,-0.08343061,4.842708337,12.35661258
54.33046188,2.514418205,2.279339088,0.126106316,2.719973851,-0.140318601,6.831337259,12.60670055
58.20619035,1.931151818,0.720502795,-0.027668926,3.224776699,0.041973972,7.048029872,13.12267128
62.08333894,0.127018889,1.679289076,0.025849084,2.834555915,0.009813761,8.375023295,13.38462612
65.95428226,2.037876246,1.20082125,0.09467572,3.357853845,-0.00601054,8.939872224,14.33301113
69.83425553,1.614625918,1.754704075,0.254083932,3.444085246,0.119741901,10.65569568,14.11317553
73.70608589,1.637088851,2.059169546,0.052628116,3.066167456,0.053286355,12.38736849,13.51417976
77.56339736,1.172423375,1.654117243,0.106224361,3.466614129,0.218129669,13.68447383,14.17908109
81.43780314,2.286312744,1.659840364,0.221772469,3.506280072,0.144866649,16.47624677,15.17166093
85.31151221,1.132843126,1.75661217,-0.010131406,3.406453424,0.084242323,15.99204338,13.7086013
89.18396543,1.719915525,2.178305669,0.280344928,3.558228768,0.077724041,16.91591721,15.03126842
93.07373919,1.709555971,1.29162556,0.134635421,3.451607017,0.152773471,19.55798991,14.35388875
96.9470217,2.089749358,1.372376723,0.174651831,3.621376679,0.139470604,20.91527797,15.33986394
100.8149203,1.593349799,0.658352558,0.130272276,3.256707617,0.159582165,22.35970859,14.24015373
104.6904364,1.564709671,1.775298747,0.05569131,3.266328069,0.262340105,27.27882666,15.46327092
108.5528851,1.556206715,1.932424552,0.093130873,3.937039956,0.236621416,27.21123555,14.54717467
112.4218328,1.953884491,2.548272446,0.079137891,3.676323401,0.198639421,30.78390727,14.1021491
116.2881161,3.577106986,2.101223439,0.220568946,3.74066966,0.297020295,33.80754188,15.74944849
120.1685649,4.13391436,2.387128098,0.182263704,4.300840856,0.269525467,36.29335942,15.67525585
124.0826253,3.347472955,1.089305889,0.107626342,4.059397083,0.276692254,39.18481116,14.83742952
127.9988251,2.640328111,1.678411236,0.120887399,3.726695238,0.12548302,41.15205339,14.62325175
131.9027204,2.260002575,2.19391111,0.025321422,3.723568747,0.146354372,44.96015303,14.87331911
135.7732879,2.601245473,1.317559297,-0.047916084,3.878785775,0.011990044,46.58629993,15.29156506
139.6507396,2.644459077,2.01604988,0.043822122,4.154794797,0.10337933,50.36755218,15.33664361
143.5704486,1.783895388,2.150771108,0.182035806,3.322807564,0.105612077,52.16193361,14.69897402
147.4574683,1.611494757,1.432008447,0.057315549,3.842347027,0.165918992,54.99605556,14.16717926
151.3113117,3.299639479,2.064278138,0.067582011,4.08288664,0.155729631,56.40773757,14.58736175
155.226837,2.413302624,2.083195516,0.069785989,3.886882999,0.397062193,59.76338681,15.19839926
159.0690493,4.144292055,1.782138736,0.131631169,3.703737026,0.299616905,64.45857151,15.39010301
162.9761471,2.264896373,1.641930287,-0.010246161,3.649512061,0.097486922,67.82732231,14.42571424
166.8734182,2.844589275,1.18789919,0.080195447,3.828072371,0.184075941,68.14394318,15.22336671
170.7602774,3.270901684,3.33595072,0.190235326,4.183939285,0.325636593,72.40891348,15.12342193
174.6556729,2.623835121,2.489844353,0.008557808,3.887652356,0.241570246,73.11622657,14.82549149
178.4934968,3.733327888,3.081822954,0.090978561,4.202715387,0.363353939,76.66209134,15.45369057
182.3831358,1.502613468,2.200012673,0.067226972,4.059926123,0.245765673,80.69654924,14.89942097
186.2255856,2.130352565,2.023652173,-0.022712159,4.121178875,0.158344401,83.8650262,14.22631436
190.1048072,3.687510781,2.29926917,0.169127425,4.11971757,0.264424857,90.53131297,14.31957503
193.988876,3.548639422,1.872215071,-0.000276199,3.954635479,0.223612725,92.11803198,14.29229602
197.8871766,2.437079118,2.871003968,0.185325837,3.846544033,0.372206532,95.9332549,14.90055175
201.7660107,2.742071282,0.914238829,0.127821738,3.576306135,0.37445298,97.79377438,14.36048367
205.6642504,2.406187407,1.964392485,0.08602665,3.773841695,0.034796855,102.880387,15.06925341
209.5548547,2.853064667,2.499702469,0.040911074,4.082444274,0.237375016,108.019559,14.67172235
213.3826118,2.19480749,2.391538282,0.142889721,4.105588566,0.206968863,111.5149812,15.11119139
217.234019,4.096360885,2.52014152,0.073018556,3.665324496,0.255392814,116.5771612,14.00436862
221.1474007,4.169794258,3.071437215,0.216051016,4.248716235,0.413747704,120.9844333,14.82936156
225.0054218,4.173260161,3.129695383,0.117775184,3.956310974,0.351778378,123.9118116,14.52020934
228.8981321,4.001683725,1.615415745,0.25155203,4.34584388,0.407522161,127.4140028,15.06443144
232.7315102,3.25304818,2.403567924,0.320751004,3.843635802,0.206757557,129.4074273,13.54865865
236.6059297,4.815394296,3.294389359,0.235829054,4.574998627,0.337941695,136.8532413,14.07706857
240.4757625,3.121260314,1.702761998,0.116825181,3.689634074,0.256867127,139.8404194,13.89359397
244.3599408,3.206316602,0.340110552,-0.091810722,3.684424642,-0.045853008,139.765963,13.84837649
248.2198231,4.969992923,2.547859985,0.170996848,4.208843805,0.321402906,142.5403395,14.0517121
252.0604108,1.846675461,1.576633139,-0.011199342,3.389623518,0.219188326,143.8505235,12.95340967
255.9524686,3.417056331,2.004070137,0.159047871,4.242442898,0.2245063,158.3411816,14.42897658
259.8365271,5.034732618,2.829585736,0.270779458,4.298511067,0.279081797,160.1063548,13.52669205
263.7344053,3.867042767,1.605617898,0.195387852,3.830196011,0.21313278,163.6450405,13.52681082
267.6049958,5.70386542,2.402449421,0.119836272,3.932975168,0.280780957,167.7911913,13.60512427
271.4800296,5.343209069,1.85185561,0.265332363,3.701617212,0.383922765,176.4347796,13.97696802
275.3718437,4.027574018,2.045857523,0.137012571,4.203895858,0.218459598,174.9207314,14.13009727
279.2209278,2.583364976,2.035838295,0.123640891,4.057541268,0.34383554,179.8465469,13.01594758
283.1353265,5.048793153,1.951375878,0.170566451,3.846452151,0.295423109,181.2536224,13.22121601
287.028313,3.996064659,2.081276112,0.016142944,3.662914812,0.217550041,180.7914485,12.79767025
290.8850677,2.468635013,1.786926983,0.091572947,3.537009036,0.112757535,177.8276242,13.51251943
294.7482494,4.10314585,2.199097005,0.120492048,3.772730466,0.257868186,174.7882589,13.06672351
298.6251454,5.054453873,1.667972113,0.206731521,4.143624883,0.228517157,177.0034445,11.95321785
302.4809406,6.161898628,2.251831038,0.297650823,3.719528556,0.381252374,182.9820067,12.82022118
306.3432304,3.637284815,1.556121533,0.26904914,4.175065806,0.230304105,184.4302745,12.40864556
310.1763565,4.070285804,1.808052844,0.077410401,3.856907838,0.237523894,182.0043103,12.76766269
314.0340051,4.697118737,2.401473839,0.076734095,4.21544936,0.312657928,181.295009,11.37647347
317.9074932,5.066003605,2.878297151,0.235261429,3.818766508,0.415406393,180.9098229,12.67272564
321.7965731,4.930358476,2.726234688,0.168965254,3.875182127,0.293412393,182.3606866,12.78538287
325.6883124,4.113567667,2.552673745,0.131328662,4.077341984,0.30439373,181.0659196,11.77647165
329.5757861,6.345163971,2.555480891,0.051105359,3.466016706,0.263007334,185.8539479,12.11113445
333.4383384,5.245138148,2.815985961,0.128844404,4.119658855,0.265914753,177.9717826,11.64550957
337.3033818,5.609244498,2.273408722,0.117454536,3.877552068,0.288243712,180.364552,11.89985661
341.1504465,4.735539853,2.524684614,0.148314003,3.647076062,0.254972648,179.6404476,12.6315028
345.0089083,5.610432302,2.645700125,0.105075739,4.495759414,0.310960645,185.5259773,12.21713
348.9015001,5.841383361,3.427675693,0.113878221,3.951325219,0.416969234,179.2223143,12.45909893
352.7434085,3.817763466,2.647184695,0.13941939,3.984433879,0.325730682,178.1473082,12.33292026
356.6260453,6.261924478,3.93667208,0.071625119,4.242583482,0.400240874,180.0772213,12.32602614
