---
instrument_id: '386'
data_file_original_name: 'EPA2007A_AMS.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'O:C_unitless'
    - 'H:C_unitless'
    - 'f43_unitless'
    - 'f44_unitless'
dataset_id: '2996'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/427'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/151'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 15:48:54'
dataset_updated_at: '2021-08-26 15:48:54'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/386'
instrument:
    id: '386'
    short_name: 'HR-ToF-AMS'
    full_name: 'High Resolution - Time of Flight - Aerosol Mass Spectrometer'
    manufacturer: 'Aerodyne'
    model: 'HR-ToF-AMS'
    year: '2005'
    data_recording_software: 'Built-in DAQ programs'
    data_analysis_software: 'Custom IGOR script (Squirrel)'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '60 ~ 90s'
    detection_limit: '0.003 ug/m3 in V mode; 0.05 in W mode'
    quantification_limit: ''
    sensitivity_to_temperature: 'N/A'
    sensitivity_to_relative_humidity: 'N/A'
    sampling_method: 'Direct gas sampling'
    sample_preparation_method: 'None'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: '0.08 lpm'
    tubing_material: 'Copper'
    chemical_identification_method: ''
    data_analysis_method: 'The built-in DAQ program converts the raw data to formatted .HDF files, then those files are pulled out by a custom IGOR script and converted to its database.'
    quantification_method: ''
    calibration_method: 'Varied concentrations of atomized Ammonium Sulfate Particles were size-selected by a fixed-voltage SMPS and injected to AMS, then calibration curve could be built based on the real time SMPS counts and AMS mass readings.'
    calibration_drift_estimate: 'Low (on the order of weeks)'
    calibration_schedule: 'Monthly'
    uncertainty_estimation_method: '9999'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: 'N/A'
    organization_id: '547'
    created_at: '2020-02-25T09:41:57.000000Z'
    updated_at: '2020-03-27T09:36:49.000000Z'
    column_descriptors: "(b) Experimental_Time = relative time, t=0 is defined as the start of the reaction (dark) or light given time (BL/Arc);\r\n(c) O:C = particle elemental ratio;\r\n(d) H:C = particle elemental ratio;\r\n(e) f43 = fragment of m/z 43;\r\n(f) f44 = fragment of m/z 44."
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'Particle Elemental Composition & Fragments'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c) O:C (+/- ?%); (d) H:C (+/- ?%); (e) f43 (+/- ?%); (f) f44 (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (min); (c) O:C (N/A); (d) H:C (N/A); (e) f43 (N/A); (f) f44 (N/A)'

---
Local_Time_PST,Experimental_Time_min,O:C_unitless,H:C_unitless,f43_unitless,f44_unitless
12/4/2014 8:10,-140,-0.731898,1.72878,-0.00433284,0.0604633
12/4/2014 8:14,-136,0.14769,1.74632,0.0204533,0.0754261
12/4/2014 8:18,-132,0.073668,1.3904,0.000567503,0.102575
12/4/2014 8:22,-128,0.0839195,2.01755,-0.0153482,0.0703831
12/4/2014 8:26,-124,-0.431182,2.12093,-0.0051547,0.0378898
12/4/2014 8:30,-120,-0.0292737,2.03354,0.0132987,0.0685055
12/4/2014 8:34,-116,-0.316748,2.2523,-0.0206809,0.0329064
12/4/2014 8:39,-111,0.0439902,1.7057,-0.00591385,0.0378703
12/4/2014 8:43,-107,-0.173007,1.99712,-0.00955093,0.0856766
12/4/2014 8:47,-103,0.0223455,2.19956,0.0006163,0.073998
12/4/2014 8:51,-99,-0.796291,1.96877,-0.0118342,0.0633466
12/4/2014 8:55,-95,-0.138877,2.00342,-0.00527501,0.058653
12/4/2014 8:59,-91,-0.735051,1.92466,-0.00845019,0.0570082
12/4/2014 9:03,-87,0.0373188,1.67063,-0.00110325,0.0970694
12/4/2014 9:07,-83,0.110053,1.57398,0.0170814,0.0827189
12/4/2014 9:11,-79,-0.0461801,1.43593,0.0175328,0.106651
12/4/2014 9:16,-74,0.259286,1.45622,0.0340699,0.0793296
12/4/2014 9:20,-70,0.280986,1.33767,0.0138509,0.101892
12/4/2014 9:24,-66,0.00240305,2.18254,0.0154867,0.0672206
12/4/2014 9:28,-62,0.410798,1.58489,0.0243611,0.10769
12/4/2014 9:32,-58,0.456305,1.33648,0.005483,0.147743
12/4/2014 9:36,-54,0.292446,1.41232,0.0250072,0.108954
12/4/2014 9:40,-50,0.213011,1.46913,-0.0168534,0.0907039
12/4/2014 9:44,-46,0.55171,1.38795,0.0176591,0.150083
12/4/2014 9:48,-42,0.240571,1.38558,0.0174546,0.0931241
12/4/2014 9:52,-38,0.1683,1.64421,-0.00926503,0.0990321
12/4/2014 9:57,-33,0.318188,1.36584,0.0121426,0.115376
12/4/2014 10:01,-29,0.0636115,2.01502,0.0105379,0.106025
12/4/2014 10:05,-25,-0.103876,2.05087,0.0132136,0.037993
12/4/2014 10:09,-21,0.443406,1.54776,0.0168145,0.153417
12/4/2014 10:13,-17,0.321449,1.55008,0.01124,0.0961421
12/4/2014 10:17,-13,0.287454,1.73602,0.0235209,0.131069
12/4/2014 10:21,-8.999999998,0.264329,1.32479,-0.0082203,0.0921821
12/4/2014 10:25,-4.999999995,0.424472,1.19211,-0.0214532,0.126024
12/4/2014 10:29,-1.000000003,0.00369063,1.9675,0.0112254,0.0654591
12/4/2014 10:33,2.999999999,0.296413,1.5688,0.00759467,0.118202
12/4/2014 10:38,8.000000005,0.55683,1.4903,0.0220428,0.11898
12/4/2014 10:42,12,0.227098,1.45687,0.0305921,0.122425
12/4/2014 10:46,16,0.28057,1.73478,0.0349349,0.122838
12/4/2014 10:50,20,0.405476,1.55508,0.0569848,0.129795
12/4/2014 10:54,24,0.491324,1.68368,0.0540066,0.204089
12/4/2014 10:58,28,0.381871,1.75075,0.125913,0.15046
12/4/2014 11:02,32,0.48423,1.61733,0.137967,0.227911
12/4/2014 11:06,36,0.55222,1.63683,0.178616,0.255889
12/4/2014 11:10,40,0.60089,1.74411,0.229727,0.316884
12/4/2014 11:14,44,0.667253,1.6488,0.226215,0.406764
12/4/2014 11:19,49,0.656485,1.63045,0.293099,0.389007
12/4/2014 11:23,53.00000001,0.708038,1.61612,0.277358,0.454066
12/4/2014 11:27,57,0.642446,1.65535,0.303075,0.488527
12/4/2014 11:31,61,0.575047,1.70906,0.354873,0.484286
12/4/2014 11:35,65,0.633831,1.69628,0.389015,0.600542
12/4/2014 11:39,69,0.639834,1.66726,0.40681,0.589955
12/4/2014 11:43,73,0.639307,1.70027,0.436793,0.618152
12/4/2014 11:47,77,0.631066,1.70305,0.46321,0.670964
12/4/2014 11:51,81,0.628305,1.67608,0.493998,0.658329
12/4/2014 11:55,85,0.657636,1.68231,0.568553,0.735719
12/4/2014 12:00,90,0.647627,1.70702,0.672495,0.821015
12/4/2014 12:04,94,0.683176,1.63823,0.673144,0.883842
12/4/2014 12:08,98.00000001,0.662173,1.62341,0.666393,0.831899
12/4/2014 12:12,102,0.659461,1.66531,0.704571,0.938225
12/4/2014 12:16,106,0.674478,1.67638,0.706084,0.998139
12/4/2014 12:20,110,0.641643,1.71411,0.761802,0.908801
12/4/2014 12:24,114,0.661738,1.69495,0.845112,1.01861
12/4/2014 12:28,118,0.66475,1.64927,0.770398,0.929675
12/4/2014 12:32,122,0.667645,1.66744,0.878058,1.03958
12/4/2014 12:36,126,0.640306,1.69095,0.84043,1.01166
12/4/2014 12:41,131,0.649005,1.68011,0.857488,1.02985
12/4/2014 12:45,135,0.688845,1.6651,0.881628,1.07871
12/4/2014 12:49,139,0.673929,1.66956,0.966825,1.19728
12/4/2014 12:53,143,0.650171,1.67426,1.00458,1.16495
12/4/2014 12:57,147,0.689064,1.65639,0.846173,1.12249
12/4/2014 13:01,151,0.683212,1.65345,1.02435,1.30234
12/4/2014 13:05,155,0.686236,1.65465,0.959529,1.20119
12/4/2014 13:09,159,0.672868,1.65861,0.983076,1.20854
12/4/2014 13:13,163,0.67129,1.65773,0.959492,1.21308
12/4/2014 13:17,167,0.676762,1.6804,1.07836,1.36228
12/4/2014 13:22,172,0.648599,1.66902,1.22005,1.35837
12/4/2014 13:26,176,0.671993,1.67917,1.43619,1.66549
12/4/2014 13:30,180,0.69036,1.64615,1.46815,1.86978
12/4/2014 13:34,184,0.659932,1.65465,1.06495,1.29777
12/4/2014 13:38,188,0.658533,1.66953,1.04893,1.18367
12/4/2014 13:42,192,0.690395,1.6407,1.5798,1.86432
12/4/2014 13:46,196,0.684147,1.63074,1.00601,1.22091
12/4/2014 13:50,200,0.68,1.65177,0.865821,1.19721
12/4/2014 13:54,204,0.663401,1.66575,0.923002,1.17243
12/4/2014 13:58,208,0.685596,1.65159,1.37506,1.70887
12/4/2014 14:03,213,0.665991,1.64108,1.17936,1.40983
12/4/2014 14:07,217,0.683342,1.65003,0.989877,1.27298
12/4/2014 14:11,221,0.660018,1.67141,0.944043,1.12484
12/4/2014 14:15,225,0.659877,1.63541,0.914933,1.13931
