---
instrument_id: '443'
data_file_original_name: 'EPA2273A_HTDMA.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'Growth_Factor_unitless'
dataset_id: '2843'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/328'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/189'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 12:53:43'
dataset_updated_at: '2021-08-26 12:53:43'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/443'
instrument:
    id: '443'
    short_name: 'HTDMA'
    full_name: 'Hygroscopicity Tandem Differential Mobility Analyzer'
    manufacturer: 'Home-made'
    model: 'TSI3081, TSI3771'
    year: '2006'
    data_recording_software: 'Labview Program'
    data_analysis_software: 'Custom MATLAB script'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '180s to 600s'
    detection_limit: 'N/A'
    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: 'Sheath 2.5 lpm; Main 0.25 lpm'
    tubing_material: 'Copper'
    chemical_identification_method: 'None'
    data_analysis_method: 'The HTDMA data that were recorded in scanning mode are analyzed using a custom MATLAB script. Particle size distribution, as a function of time are displayed. Hygroscopicity is indicated by the size difference of the selected particles after the 1st and 2nd DMA.'
    quantification_method: 'Signal strength is converted to partial number/size distribution by designed transfer functions. Concentration is not important for this instrument but the sizes selected by the two DMAs.'
    calibration_method: 'Atomizing Ammonium Sulfate Aerosol into the system with the particle growing device off and check the scanning size with the first DMA under different measuring modes.'
    calibration_drift_estimate: 'No estimate'
    calibration_schedule: 'Annually'
    uncertainty_estimation_method: 'Duplication of the same experimental conditions.'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: ''
    organization_id: '547'
    created_at: '2020-06-09T00:37:45.000000Z'
    updated_at: '2020-06-09T00:37:45.000000Z'
    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) Growth_Factor = Index for particle qualitative hygroscopicity (the ratio between the volume after particles getting through the growing chamber and before the entrance)."
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'Particle Hygroscopicity'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c) Growth_Factor (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (min); (c) Growth_Factor (N/A)'

---
Local_Time_PST,Experimental_Time_min,Growth_Factor_unitless
11/6/2016 10:23:00 AM,-7.00000000186265,0.708
11/6/2016 10:24:00 AM,-5.99999999860302,1.891
11/6/2016 10:25:00 AM,-4.99999999534339,0.79
11/6/2016 10:27:00 AM,-2.99999999930151,1.032
11/6/2016 10:28:00 AM,-1.99999999604188,1.104
11/6/2016 10:30:00 AM,0,0
11/6/2016 10:31:00 AM,1.00000000325963,0.944
11/6/2016 10:33:00 AM,2.99999999930151,0.691
11/6/2016 10:34:00 AM,4.00000000256114,0
11/6/2016 10:36:00 AM,5.99999999860302,0.013
11/6/2016 10:37:00 AM,7.00000000186265,0
11/6/2016 10:38:00 AM,8.00000000512227,0.216
11/6/2016 10:40:00 AM,10.0000000011642,0.631
11/6/2016 10:41:00 AM,11.0000000044238,0.699
11/6/2016 10:43:00 AM,13.0000000004657,0.641
11/6/2016 10:44:00 AM,14.0000000037253,0.874
11/6/2016 10:46:00 AM,15.9999999997672,0.812
11/6/2016 10:47:00 AM,17.0000000030268,0.685
11/6/2016 10:49:00 AM,18.9999999990687,0.607
11/6/2016 10:50:00 AM,20.0000000023283,1.064
11/6/2016 10:51:00 AM,20.9999999951106,0.784
11/6/2016 10:53:00 AM,23.0000000016298,0.678
11/6/2016 10:54:00 AM,24.0000000048894,0.844
11/6/2016 10:56:00 AM,26.0000000009313,0.623
11/6/2016 10:57:00 AM,27.000000004191,0.969
11/6/2016 10:59:00 AM,29.0000000002328,0.98
11/6/2016 11:00:00 AM,30.0000000034925,0.97
11/6/2016 11:02:00 AM,31.9999999995343,0.982
11/6/2016 11:03:00 AM,33.000000002794,0.981
11/6/2016 11:04:00 AM,33.9999999955762,0.986
11/6/2016 11:06:00 AM,36.0000000020955,0.993
11/6/2016 11:07:00 AM,36.9999999948777,0.989
11/6/2016 11:09:00 AM,39.000000001397,0.991
11/6/2016 11:10:00 AM,40.0000000046566,0.991
11/6/2016 11:12:00 AM,42.0000000006985,0.995
11/6/2016 11:13:00 AM,43.0000000039581,1.31
11/6/2016 11:15:00 AM,45,0.99
11/6/2016 11:16:00 AM,46.0000000032596,0.988
11/6/2016 11:17:00 AM,46.9999999960419,0.992
11/6/2016 11:19:00 AM,49.0000000025611,0.988
11/6/2016 11:20:00 AM,49.9999999953434,0.991
11/6/2016 11:22:00 AM,52.0000000018626,0.991
11/6/2016 11:23:00 AM,53.0000000051223,0.99
11/6/2016 11:25:00 AM,55.0000000011642,0.992
11/6/2016 11:26:00 AM,56.0000000044238,0.991
11/6/2016 11:28:00 AM,58.0000000004657,0.996
11/6/2016 11:29:00 AM,59.0000000037253,0.993
11/6/2016 11:30:00 AM,59.9999999965075,0.993
11/6/2016 11:32:00 AM,62.0000000030268,0.994
11/6/2016 11:33:00 AM,62.999999995809,0.991
11/6/2016 11:35:00 AM,65.0000000023283,0.995
11/6/2016 11:36:00 AM,65.9999999951106,0.989
11/6/2016 11:38:00 AM,68.0000000016298,0.996
11/6/2016 11:39:00 AM,69.0000000048894,0.739
11/6/2016 11:41:00 AM,71.0000000009313,0.998
11/6/2016 11:42:00 AM,72.000000004191,0.992
11/6/2016 11:43:00 AM,72.9999999969732,0.997
11/6/2016 11:45:00 AM,75.0000000034925,0.995
11/6/2016 11:46:00 AM,75.9999999962747,0.994
11/6/2016 11:48:00 AM,78.000000002794,0.996
11/6/2016 11:49:00 AM,78.9999999955762,0.992
11/6/2016 11:51:00 AM,81.0000000020955,0.994
11/6/2016 11:52:00 AM,81.9999999948777,0.993
11/6/2016 11:54:00 AM,84.000000001397,0.995
11/6/2016 11:55:00 AM,85.0000000046566,0.994
11/6/2016 11:56:00 AM,85.9999999974389,0.995
11/6/2016 11:58:00 AM,88.0000000039581,0.994
11/6/2016 11:59:00 AM,88.9999999967404,0.996
11/6/2016 12:01:00 PM,91.0000000032596,0.995
11/6/2016 12:02:00 PM,91.9999999960419,0.999
11/6/2016 12:04:00 PM,94.0000000025611,0.999
11/6/2016 12:05:00 PM,94.9999999953434,0.997
11/6/2016 12:07:00 PM,97.0000000018626,0.997
11/6/2016 12:08:00 PM,98.0000000051223,0.998
11/6/2016 12:09:00 PM,98.9999999979045,0.998
11/6/2016 12:11:00 PM,101.000000004424,0.999
11/6/2016 12:12:00 PM,101.999999997206,1.002
11/6/2016 12:14:00 PM,104.000000003725,1.001
11/6/2016 12:15:00 PM,104.999999996508,0.998
11/6/2016 12:17:00 PM,107.000000003027,0.997
11/6/2016 12:18:00 PM,107.999999995809,0.997
11/6/2016 12:20:00 PM,110.000000002328,0.997
11/6/2016 12:21:00 PM,110.999999995111,0.999
11/6/2016 12:22:00 PM,111.99999999837,0.799
11/6/2016 12:24:00 PM,114.000000004889,0.997
11/6/2016 12:25:00 PM,114.999999997672,0.994
11/6/2016 12:27:00 PM,117.000000004191,0.995
11/6/2016 12:28:00 PM,117.999999996973,0.998
11/6/2016 12:30:00 PM,120.000000003492,0.997
11/6/2016 12:31:00 PM,120.999999996275,0.997
11/6/2016 12:33:00 PM,123.000000002794,0.996
11/6/2016 12:34:00 PM,123.999999995576,0.995
11/6/2016 12:35:00 PM,124.999999998836,0.998
11/6/2016 12:37:00 PM,126.999999994878,1.001
11/6/2016 12:38:00 PM,127.999999998137,0.998
11/6/2016 12:40:00 PM,130.000000004657,1.253
11/6/2016 12:41:00 PM,130.999999997439,1.002
11/6/2016 12:43:00 PM,133.000000003958,0.999
11/6/2016 12:44:00 PM,133.99999999674,1.001
11/6/2016 12:46:00 PM,136.00000000326,1.002
11/6/2016 12:47:00 PM,136.999999996042,1
11/6/2016 12:48:00 PM,137.999999999302,1.001
11/6/2016 12:50:00 PM,139.999999995343,0.999
11/6/2016 12:51:00 PM,140.999999998603,1.001
11/6/2016 12:53:00 PM,143.000000005122,1.005
11/6/2016 12:54:00 PM,143.999999997905,1
11/6/2016 12:56:00 PM,146.000000004424,0.999
11/6/2016 12:57:00 PM,146.999999997206,0.799
11/6/2016 12:59:00 PM,149.000000003725,1.001
11/6/2016 1:00:00 PM,149.999999996508,1.002
11/6/2016 1:01:00 PM,150.999999999767,0.999
11/6/2016 1:03:00 PM,152.999999995809,0.999
11/6/2016 1:04:00 PM,153.999999999069,0.997
11/6/2016 1:06:00 PM,155.999999995111,1
11/6/2016 1:07:00 PM,156.99999999837,1
11/6/2016 1:09:00 PM,159.000000004889,1
11/6/2016 1:10:00 PM,159.999999997672,0.998
11/6/2016 1:11:00 PM,161.000000000931,1
11/6/2016 1:13:00 PM,162.999999996973,1.003
11/6/2016 1:14:00 PM,164.000000000233,0.999
11/6/2016 1:16:00 PM,165.999999996275,1.003
11/6/2016 1:17:00 PM,166.999999999534,1.001
11/6/2016 1:19:00 PM,168.999999995576,1.002
11/6/2016 1:20:00 PM,169.999999998836,1.004
11/6/2016 1:22:00 PM,171.999999994878,1.006
11/6/2016 1:23:00 PM,172.999999998137,1.003
11/6/2016 1:24:00 PM,174.000000001397,1.001
11/6/2016 1:26:00 PM,175.999999997439,1.001
11/6/2016 1:27:00 PM,177.000000000698,0.999
11/6/2016 1:29:00 PM,178.99999999674,1.003
11/6/2016 1:30:00 PM,180,1.005
11/6/2016 1:32:00 PM,181.999999996042,1.003
11/6/2016 1:33:00 PM,182.999999999302,1.001
11/6/2016 1:35:00 PM,184.999999995343,1.001
11/6/2016 1:36:00 PM,185.999999998603,1.002
11/6/2016 1:37:00 PM,187.000000001863,1.005
11/6/2016 1:39:00 PM,188.999999997905,1
11/6/2016 1:40:00 PM,190.000000001164,1.001
11/6/2016 1:42:00 PM,191.999999997206,1.001
11/6/2016 1:43:00 PM,193.000000000466,1.005
11/6/2016 1:45:00 PM,194.999999996508,1.005
11/6/2016 1:46:00 PM,195.999999999767,1.006
11/6/2016 1:48:00 PM,197.999999995809,1.005
11/6/2016 1:49:00 PM,198.999999999069,1.005
11/6/2016 1:50:00 PM,200.000000002328,1.008
11/6/2016 1:52:00 PM,201.99999999837,1.004
11/6/2016 1:53:00 PM,203.00000000163,1.005
11/6/2016 1:55:00 PM,204.999999997672,1
11/6/2016 1:56:00 PM,206.000000000931,1.003
11/6/2016 1:58:00 PM,207.999999996973,1.001
11/6/2016 1:59:00 PM,209.000000000233,1.001
11/6/2016 2:01:00 PM,210.999999996275,1.008
11/6/2016 2:02:00 PM,211.999999999534,1.006
11/6/2016 2:03:00 PM,213.000000002794,1.006
11/6/2016 2:05:00 PM,214.999999998836,1.006
11/6/2016 2:06:00 PM,216.000000002095,1.007
11/6/2016 2:08:00 PM,217.999999998137,1.006
11/6/2016 2:09:00 PM,219.000000001397,1.006
11/6/2016 2:11:00 PM,220.999999997439,1.007
11/6/2016 2:12:00 PM,222.000000000698,1.006
11/6/2016 2:14:00 PM,223.99999999674,1.003
11/6/2016 2:15:00 PM,225,1.004
11/6/2016 2:16:00 PM,226.00000000326,1.001
11/6/2016 2:18:00 PM,227.999999999302,1.005
11/6/2016 2:19:00 PM,229.000000002561,1.005
11/6/2016 2:21:00 PM,230.999999998603,1.009
11/6/2016 2:22:00 PM,232.000000001863,1.006
11/6/2016 2:24:00 PM,233.999999997905,1.003
11/6/2016 2:25:00 PM,235.000000001164,1.004
11/6/2016 2:27:00 PM,236.999999997206,1.003
11/6/2016 2:28:00 PM,238.000000000466,1.005
11/6/2016 2:29:00 PM,239.000000003725,1.007
11/6/2016 2:31:00 PM,240.999999999767,1.01
11/6/2016 2:32:00 PM,242.000000003027,1.005
11/6/2016 2:34:00 PM,243.999999999069,1.005
11/6/2016 2:35:00 PM,245.000000002328,1.007
11/6/2016 2:37:00 PM,246.99999999837,1.005
11/6/2016 2:38:00 PM,248.00000000163,1.007
11/6/2016 2:40:00 PM,249.999999997672,1.005
11/6/2016 2:41:00 PM,251.000000000931,1.007
11/6/2016 2:42:00 PM,252.000000004191,1.006
11/6/2016 2:44:00 PM,254.000000000233,1.007
11/6/2016 2:45:00 PM,255.000000003492,1.008
11/6/2016 2:47:00 PM,256.999999999534,1.007
11/6/2016 2:48:00 PM,258.000000002794,1.008
11/6/2016 2:50:00 PM,259.999999998836,1.008
11/6/2016 2:51:00 PM,261.000000002095,1.006
11/6/2016 2:53:00 PM,262.999999998137,1.016
11/6/2016 2:54:00 PM,264.000000001397,1.01
11/6/2016 2:55:00 PM,265.000000004657,1.008
11/6/2016 2:57:00 PM,267.000000000698,1.007
11/6/2016 2:58:00 PM,268.000000003958,0.836
11/6/2016 3:00:00 PM,270,0.998
11/6/2016 3:01:00 PM,271.00000000326,0.999
11/6/2016 3:03:00 PM,272.999999999302,0.996
11/6/2016 3:04:00 PM,274.000000002561,0.996
11/6/2016 3:06:00 PM,275.999999998603,1.005
11/6/2016 3:07:00 PM,277.000000001863,1.202
11/6/2016 3:08:00 PM,278.000000005122,1.009
11/6/2016 3:10:00 PM,280.000000001164,1.006
11/6/2016 3:11:00 PM,281.000000004424,1.01
11/6/2016 3:13:00 PM,283.000000000466,1.007
11/6/2016 3:14:00 PM,284.000000003725,1.012
11/6/2016 3:16:00 PM,285.999999999767,0.832
11/6/2016 3:17:00 PM,287.000000003027,0.996
11/6/2016 3:19:00 PM,288.999999999069,1.004
11/6/2016 3:20:00 PM,290.000000002328,1
11/6/2016 3:21:00 PM,290.999999995111,0.999
11/6/2016 3:23:00 PM,293.00000000163,0.998
11/6/2016 3:24:00 PM,294.000000004889,0.997
11/6/2016 3:26:00 PM,296.000000000931,0.999
11/6/2016 3:27:00 PM,297.000000004191,0.996
11/6/2016 3:29:00 PM,299.000000000233,1.001
11/6/2016 3:30:00 PM,300.000000003492,1.006
11/6/2016 3:32:00 PM,301.999999999534,1
11/6/2016 3:33:00 PM,303.000000002794,1
11/6/2016 3:34:00 PM,303.999999995576,1.003
11/6/2016 3:36:00 PM,306.000000002095,1.003
11/6/2016 3:37:00 PM,306.999999994878,1.006
11/6/2016 3:39:00 PM,309.000000001397,1.006
11/6/2016 3:40:00 PM,310.000000004657,1.004
11/6/2016 3:42:00 PM,312.000000000698,1.006
11/6/2016 3:43:00 PM,313.000000003958,1.006
11/6/2016 3:45:00 PM,315,1.001
11/6/2016 3:46:00 PM,316.00000000326,1.008
11/6/2016 3:47:00 PM,316.999999996042,1.003
11/6/2016 3:49:00 PM,319.000000002561,1.005
11/6/2016 3:50:00 PM,319.999999995343,0.863
11/6/2016 3:52:00 PM,322.000000001863,0.999
11/6/2016 3:53:00 PM,323.000000005122,0.993
11/6/2016 3:55:00 PM,325.000000001164,1.005
11/6/2016 3:56:00 PM,326.000000004424,1
11/6/2016 3:58:00 PM,328.000000000466,1.001
11/6/2016 3:59:00 PM,329.000000003725,1.002
11/6/2016 4:00:00 PM,329.999999996508,1.001
11/6/2016 4:02:00 PM,332.000000003027,0.999
11/6/2016 4:03:00 PM,332.999999995809,0.993
11/6/2016 4:05:00 PM,335.000000002328,1.003
11/6/2016 4:06:00 PM,335.999999995111,1
11/6/2016 4:08:00 PM,338.00000000163,1.131
11/6/2016 4:09:00 PM,339.000000004889,1.006
11/6/2016 4:11:00 PM,341.000000000931,1.008
11/6/2016 4:12:00 PM,342.000000004191,1.003
11/6/2016 4:13:00 PM,342.999999996973,1.005
11/6/2016 4:15:00 PM,345.000000003492,1.007
11/6/2016 4:16:00 PM,345.999999996275,1.006
11/6/2016 4:18:00 PM,348.000000002794,1.004
11/6/2016 4:19:00 PM,348.999999995576,0.999
11/6/2016 4:21:00 PM,351.000000002095,1.01
11/6/2016 4:22:00 PM,351.999999994878,1.005
11/6/2016 4:24:00 PM,354.000000001397,1.004
11/6/2016 4:25:00 PM,355.000000004657,0.872
11/6/2016 4:26:00 PM,355.999999997439,1
11/6/2016 4:28:00 PM,358.000000003958,0.999
11/6/2016 4:29:00 PM,358.99999999674,1.008
11/6/2016 4:31:00 PM,361.00000000326,1.005
11/6/2016 4:32:00 PM,361.999999996042,1.008
11/6/2016 4:34:00 PM,364.000000002561,1.004
11/6/2016 4:35:00 PM,364.999999995343,0.999
11/6/2016 4:37:00 PM,367.000000001863,1.003
11/6/2016 4:38:00 PM,368.000000005122,1.011
11/6/2016 4:39:00 PM,368.999999997905,1.007
11/6/2016 4:41:00 PM,371.000000004424,1.005
11/6/2016 4:42:00 PM,371.999999997206,1.136
11/6/2016 4:44:00 PM,374.000000003725,1.008
11/6/2016 4:45:00 PM,374.999999996508,1.004
11/6/2016 4:47:00 PM,377.000000003027,1.008
11/6/2016 4:48:00 PM,377.999999995809,1.009
11/6/2016 4:50:00 PM,380.000000002328,1.007
11/6/2016 4:51:00 PM,380.999999995111,0.877
11/6/2016 4:52:00 PM,381.99999999837,0.999
11/6/2016 4:54:00 PM,384.000000004889,0.999
11/6/2016 4:55:00 PM,384.999999997672,1
11/6/2016 4:57:00 PM,387.000000004191,1.006
11/6/2016 4:58:00 PM,387.999999996973,1.005
11/6/2016 5:00:00 PM,390.000000003492,0.999
11/6/2016 5:01:00 PM,390.999999996275,1.014
11/6/2016 5:03:00 PM,393.000000002794,1.008
11/6/2016 5:04:00 PM,393.999999995576,1.005
11/6/2016 5:05:00 PM,394.999999998836,1.011
11/6/2016 5:07:00 PM,396.999999994878,1.011
