---
instrument_id: '480'
data_file_original_name: 'CIMS_ppb_210421.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: '2085'
experiment_link: 'https://icarus.ucdavis.edu/chambers/552/experiments/541'
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 16:21:09'
dataset_updated_at: '2021-08-10 16:21:09'
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)
9.206626996,2.440204192,9.597879219,0.516215798,0.136626606,0.332607452,0.47197896,0.343382621,0.406481003,0.106231651,0.687902866,0.023139956,2.238359261
9.303818256,7.492101258,9.380405819,0.432915807,0.021695915,0.17226169,0.403489515,0.199817119,2.16755082,0.053558823,0.736108172,-0.120617604,3.178826268
9.401464672,8.377715867,11.94241032,0.41889165,-0.011462716,0.114560307,0.438473286,0.15624158,3.716741431,0.037135791,0.746928399,-0.101863517,4.048571625
9.498353006,9.346518934,13.5995844,0.408725054,-0.030543267,0.176605605,0.425126823,21.42723683,4.858727022,0.031169091,0.724389265,-0.10428156,4.502143247
9.593975719,8.873901422,14.65769698,0.5051962,-0.020131611,0.19372309,0.40872839,29.73901909,5.352046785,0.039073234,0.647466487,-0.120646313,4.746835346
9.691184303,9.114132946,14.77522432,0.474673077,-0.025468247,0.166954725,0.423084344,61.95071768,6.041889468,0.034727139,0.600108181,-0.088976503,4.358691686
9.789078458,9.373940611,15.54642656,0.501477071,-0.051729064,0.085054183,0.433268455,82.65292171,6.424360058,0.030272186,0.516853391,-0.154802913,3.963947566
9.887134114,10.50156906,16.36999109,0.49318863,-0.040957507,0.101637488,0.500740906,108.1271292,7.190973736,0.008044988,0.485900167,-0.135237809,3.734250159
9.984837603,10.56816732,15.73215182,0.496829808,-0.035493591,0.173508025,0.503341268,113.2772409,7.985742634,0.018633068,0.414216363,-0.104226713,3.556036339
10.08225678,9.571970633,15.3443099,0.506377074,-0.030064504,0.151094404,0.60025822,141.7967298,8.62925399,0.024642687,0.365652227,-0.119273862,3.478562047
10.17963132,9.158435816,14.7722801,0.53879859,-0.027581133,0.084399645,0.553842244,143.3549761,9.391973734,0.018723699,0.340436811,-0.115674617,3.114581595
10.27710418,9.201547665,15.43449485,0.48097366,-0.045551556,0.110300212,0.571465737,142.9043354,9.854655708,0.009227167,0.293468675,-0.136328504,2.746232841
10.37347323,8.786007461,15.09190247,0.486426514,-0.04151742,0.061746988,0.491948114,144.1907516,10.55515835,-0.01001937,0.281627918,-0.150929511,2.584057198
10.46972599,8.809168457,14.91423722,0.546302657,-0.027927165,0.116870561,0.585336219,142.3448704,10.94441936,0.015225717,0.307371331,-0.101164508,2.733856249
10.56708092,8.510856726,14.47151068,0.475964199,-0.008416139,0.126817202,0.547738885,143.9362325,11.47899588,0.003219354,0.244305791,-0.120139836,2.605736318
10.6639075,8.413239416,14.15002744,0.483433885,-0.039703552,0.086191586,0.548655252,144.6027362,11.84610339,0.005388895,0.24291018,-0.141828445,2.392473007
10.76061804,8.350689252,13.85036956,0.479681721,-0.049397862,0.116327881,0.548383276,143.7280372,12.65150212,-0.002128833,0.250269568,-0.12220394,2.389139814
10.85846653,8.319507471,14.59723232,0.446649601,-0.028329548,0.118386016,0.515440649,143.6716775,12.98705323,-0.002457718,0.242357981,-0.130747631,2.426794715
10.95612342,8.254090701,14.05447651,0.493744867,-0.042418679,0.127300593,0.529849913,145.3023034,12.98733897,-0.008327769,0.213775032,-0.151739696,2.280053284
11.05431603,8.492664806,14.20044451,0.463227629,-0.033692245,0.073216123,0.560378873,144.1954559,13.83487778,0.010121121,0.23208335,-0.112417369,2.466028018
11.15279225,8.672136474,14.14878839,0.803179577,0.800317009,0.641359376,0.617246442,136.6285883,15.97006593,0.021951694,0.23315982,-0.116663301,2.516736362
11.25152014,9.570935612,13.29695165,1.266008202,2.507118427,1.782241967,0.73213709,126.723804,19.57408357,0.041441869,0.211647877,-0.109654512,2.979143004
11.34947623,10.31278235,13.97757021,1.719958878,4.027955583,2.802670915,0.827278939,119.2216065,23.17185468,0.077987929,0.222405725,-0.095744324,3.355360081
11.44712584,11.63203758,13.89120153,2.223866538,5.195510953,3.773804624,0.897850218,113.4168891,26.20887156,0.111164153,0.230409926,-0.125243338,3.549518676
11.54518392,12.52807266,13.03424658,2.637999387,6.585297961,4.964210932,0.863207696,108.1948595,29.27100251,0.172345274,0.26193283,-0.13018343,3.880359818
11.64395328,13.19460113,13.35469379,2.924876665,7.305512182,6.103785749,0.928975471,100.5653618,31.52726378,0.182094938,0.234999304,-0.149851464,4.595613616
11.74218173,13.64517379,13.43309619,3.373633968,8.079896575,7.356960821,1.003599041,97.45515448,33.94662924,0.203549857,0.235384606,-0.118214155,5.101192841
11.84099192,14.49435112,13.04371783,3.778383624,8.872262416,8.312490444,1.016543679,92.47780312,35.45357643,0.246675319,0.263492004,-0.098177658,5.069355822
11.93892385,15.18745565,12.94106729,3.904390615,9.503432074,9.110003729,1.002724122,87.01711929,38.21357949,0.261506342,0.246519475,-0.129362717,5.618185488
12.03498989,15.86724966,13.33654431,4.291933028,9.762680549,10.26038709,0.949227412,81.68284312,39.24988414,0.267432125,0.238567146,-0.114280928,6.414786556
12.13177197,16.63220326,13.79113355,4.453092623,10.56911676,11.20826096,0.974595471,78.50485017,40.810789,0.299548031,0.273858594,-0.121902921,6.20191546
12.22924078,16.93734901,13.29189256,4.891967933,11.18724397,12.55383697,1.035004395,76.01570223,43.59601399,0.333530862,0.281403,-0.103437768,6.579854308
12.32640039,17.82349607,13.53582684,5.019263465,11.3715569,13.03484352,0.999131571,71.34584685,44.99039781,0.367182869,0.265321368,-0.134913886,6.628262042
12.42366163,18.42164436,13.20633078,5.319412596,11.68656789,13.92957362,1.003743518,67.33601135,45.30280324,0.347651542,0.28407561,-0.121617264,7.161227001
12.52227318,18.7324161,13.83755812,5.568153229,12.09320792,15.06145708,0.990419129,64.6717119,46.77200307,0.387436757,0.270424768,-0.114453207,7.401833754
12.62054928,19.10693946,14.23712306,5.737065786,12.41711015,15.67545669,1.000538596,60.76499439,48.29433243,0.356141815,0.265709662,-0.117237985,7.248714121
12.71834442,19.84912323,13.66169799,5.863977414,12.92717652,16.92959565,1.007789938,58.75968542,49.77379561,0.443070115,0.294160265,-0.11044577,7.822300336
12.81640829,20.51408256,14.16319944,6.116176438,12.8338291,17.86973023,1.048523476,55.59732882,51.10590448,0.426984209,0.310477169,-0.095967844,7.868101673
12.9142145,21.2728774,14.75283909,6.231424355,13.67557217,19.09583155,1.010980225,53.82932682,52.4617654,0.443793199,0.300735968,-0.121570024,8.016715795
13.01173569,21.22649422,13.61069861,6.448233076,13.64810943,19.28592939,0.957117896,50.23981675,52.87745848,0.42947785,0.316443398,-0.136370968,8.509191409
13.10909809,21.89550262,14.61910699,6.749844546,13.83153453,20.5017575,1.001748869,48.46915333,53.07587845,0.514066506,0.297663506,-0.090730415,8.52879697
13.2078245,21.97658264,14.13219275,6.754752003,14.43915672,21.08416735,0.948524143,45.92497487,53.71173273,0.479272022,0.329702464,-0.123058161,8.48297534
13.30619326,22.93406764,14.57879219,6.997661762,14.39032887,21.84994326,0.988778453,44.37318988,54.59844338,0.526296271,0.285490399,-0.097634718,8.85775348
13.40301495,22.52670935,15.31392846,6.915678373,14.06297027,22.26964448,1.007544093,41.93305276,55.34414068,0.506461032,0.278110284,-0.119508054,9.148179391
13.50150191,23.3259588,15.15235054,7.0159369,14.11291,23.09972522,0.971388909,39.71717509,55.10721714,0.506927397,0.325748453,-0.095138065,9.188595951
13.59957952,23.9159494,15.03785143,7.255176007,14.67731698,23.91962483,0.885004918,38.06757812,55.92913615,0.497092055,0.277421452,-0.141100281,9.201159698
13.69737982,24.09579837,15.73022069,7.33401884,14.78542288,24.2565503,0.925480007,36.79864513,56.89904523,0.54006939,0.310620326,-0.135360929,9.295944555
13.79608982,24.25131233,16.15911475,7.543293566,14.61402365,25.42633984,0.889854479,35.13689202,57.35511038,0.584883738,0.322505863,-0.107841737,9.333288454
13.89379624,24.5230694,16.60213155,7.531737331,15.05160542,26.03233779,0.888817803,33.62324339,57.91462794,0.576029,0.342949398,-0.112219894,9.275712515
13.99195541,25.02861225,16.12383523,7.700993154,15.52813659,26.49730504,0.905974991,31.7357267,57.45706434,0.526799729,0.324144446,-0.12355914,9.563527265
14.08978281,25.18691759,15.900718,7.688576146,15.26672334,27.16885856,0.8561922,30.42415498,58.4702036,0.56984016,0.331868388,-0.135583328,9.979622475
14.18766575,25.98954234,16.36380115,7.767959368,15.35471853,27.71447241,0.853179023,28.94798918,58.75539587,0.571395369,0.339273463,-0.117987851,9.865323358
14.28524751,26.13139765,16.51587487,7.977773613,15.21164857,28.17387495,0.868661137,27.95880042,58.49883486,0.545173482,0.324974588,-0.134663485,10.04180602
14.38257923,26.56384307,16.94163863,7.945504765,15.08042751,28.47679375,0.901604747,26.86638488,58.62328603,0.614667277,0.342289983,-0.094654509,9.853701437
14.48041793,27.02667105,17.02826061,7.99151168,15.55971516,29.23417677,0.868193279,25.55367887,59.29477351,0.580012198,0.338012034,-0.102142526,10.43947482
14.57870946,26.72751129,16.61399114,8.03036316,15.70509838,28.8427343,0.856267178,24.08287607,59.92038794,0.558396689,0.32119253,-0.116721391,10.18484765
14.67641044,27.20484281,16.59717015,8.067022864,15.69998621,30.10366595,0.824269395,23.74849462,59.69304292,0.595652793,0.325693156,-0.108483507,10.42194081
14.77424464,27.52658482,17.36773797,8.086910066,15.58651607,30.40893328,0.834330322,22.64864946,60.56382602,0.575226523,0.348667289,-0.083821696,10.61054465
14.87175834,27.7523154,16.79568705,8.456635544,15.60380829,31.5991427,0.862362148,22.00799036,60.41121098,0.586182271,0.320529931,-0.157567609,10.44246273
14.97052697,28.38968464,17.04668984,8.071153078,15.89601837,32.7599429,0.810359244,20.85510037,60.83733602,0.638893822,0.345037203,-0.14291334,10.52907786
15.06786267,28.54876614,16.9530961,8.407799865,16.09461371,32.42074958,0.811870091,20.1921438,60.81510123,0.63733009,0.346967943,-0.104890384,10.50093554
15.16610077,28.12668851,17.36349345,8.159092052,16.04838493,32.71516958,0.831682155,19.71860288,61.48485201,0.659067889,0.351294137,-0.081055544,10.6474458
15.26430496,28.74710758,16.92255159,8.456365071,15.92448435,33.20152401,0.802154785,18.61553134,61.02077097,0.596174151,0.333099062,-0.120191902,10.6308072
15.36298208,29.23981195,17.8561507,8.586846351,16.33985724,34.8932113,0.819194843,18.09554504,61.4472936,0.667010704,0.395194768,-0.079129761,10.56030201
15.46054248,29.55605678,17.16004211,8.579231767,15.85973175,34.21043146,0.804352858,17.2483086,60.89015393,0.61917504,0.312396564,-0.114658928,10.96024784
15.55915768,29.48612622,16.93403968,8.51729275,15.88981493,34.31735505,0.74744134,16.98822012,60.87076754,0.628302525,0.337663127,-0.092194347,10.70338561
15.65741526,29.52488963,17.71799952,8.287541829,15.99638997,34.51827742,0.812128231,16.27329166,60.90213483,0.670470028,0.330016772,-0.100486245,10.7846506
15.75613686,30.15686629,17.82958993,8.499198483,15.83236164,35.35963158,0.761252179,15.51283618,60.88263039,0.637988926,0.350672838,-0.085926551,10.762811