Articles | Volume 16, issue 21
https://doi.org/10.5194/amt-16-5261-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-16-5261-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Nov 2023
Research article |
| 08 Nov 2023
| 08 Nov 2023
Measurements of volatile organic compounds in ambient air by gas-chromatography and real-time Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit
Andrew R. Jensen
Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, USA
Department of Chemistry, University of Colorado, Boulder, Colorado 80309, USA
Abigail R. Koss
Tofwerk USA, Boulder, Colorado 80301, USA
Ryder B. Hales
Department of Chemistry, University of Colorado, Boulder, Colorado 80309, USA
Joost A. de Gouw
CORRESPONDING AUTHOR
Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, USA
Department of Chemistry, University of Colorado, Boulder, Colorado 80309, USA
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Yaqin Gao, Hongli Wang, Lingling Yuan, Shengao Jing, Bin Yuan, Guofeng Shen, Liang Zhu, Abigail Koss, Yingjie Li, Qian Wang, Dan Dan Huang, Shuhui Zhu, Shikang Tao, Shengrong Lou, and Cheng Huang
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Short summary
Quantification of a wide range of volatile organic compounds by proton-transfer-reaction mass spectrometry (PTR-MS) can be achieved with direct calibration of only a subset of compounds, characterization of instrument response, and simple reaction kinetics. We characterized our Vocus PTR-MS and developed a toolkit as a guide through this process. A catalytic zero air generator provided the lowest detection limits, and short, frequent calibrations informed variability in instrument response.
Quantification of a wide range of volatile organic compounds by proton-transfer-reaction mass...
