Details:

Journal Title:
Atmospheric Measurement Techniques
Personal Author:
Lerner, Brian M. ; Gilman, Jessica B. ; Aikin, Kenneth C. ; Atlas, Elliot L. ; Goldan, Paul D. ; ... More +
Lerner, Brian M. ; Gilman, Jessica B. ; Aikin, Kenneth C. ; Atlas, Elliot L. ; Goldan, Paul D. ; Graus, Martin ; Hendershot, Roger ; Isaacman-VanWertz, Gabriel A. ; Koss, Abigail ; Kuster, William C. ; Lueb, Richard A. ; McLaughlin, Richard J. ; Peischl, Jeff ; Sueper, Donna ; Ryerson, Thomas B. ; Tokarek, Travis W. ; Warneke, Carsten ; Yuan, Bin ; de Gouw, Joost A. Less -
NOAA Program & Office:
OAR (Oceanic and Atmospheric Research) ; CSL (Chemical Sciences Laboratory) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)
OAR (Oceanic and Atmospheric Research) ; CSL (Chemical Sciences Laboratory) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:
Volatile organic compounds were quantified during two aircraft-based field campaigns using highly automated, whole air samplers with expedited post-flight analysis via a new custom-built, field-deployable gas chromatography-mass spectrometry instrument. During flight, air samples were pressurized with a stainless steel bellows compressor into electropolished stainless steel canisters. The air samples were analyzed using a novel gas chromatograph system designed specifically for field use which eliminates the need for liquid nitrogen. Instead, a Stirling cooler is used for cryogenic sample pre-concentration at temperatures as low as 165 degrees C. The analysis system was fully automated on a 20 min cycle to allow for unattended processing of an entire flight of 72 sample canisters within 30 h, thereby reducing typical sample residence times in the canisters to less than 3 days. The new analytical system is capable of quantifying a wide suite of C2 to C10 organic compounds at part-per-trillion sensitivity. This paper describes the sampling and analysis systems, along with the data analysis procedures which include a new peak-fitting software package for rapid chromatographic data reduction. Instrument sensitivities, uncertainties and system artifacts are presented for 35 trace gas species in canister samples. Comparisons of reported mixing ratios from each field campaign with measurements from other instruments are also presented.
Source:
Atmospheric Measurement Techniques, 10(1), 291-313.
DOI:
https://doi.org/10.5194/amt-10-291-2017
Document Type:
Journal Article
Rights Information:
CC BY
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:f3ad5b79b363c014956da58e39cd9ad3a6c7333e8fd45d9f6a7b657390186828
Download URL:
https://repository.library.noaa.gov/view/noaa/22238/noaa_22238_DS1.pdf
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