Response of protonated, adduct, and fragmented ions in Vocus proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS)

Li, Fangbing; Huang, Dan Dan; Tian, Linhui; Yuan, Bin; Tan, Wen; Zhu, Liang; Ye, Penglin; Worsnop, Douglas; Hoi, Ka In; Mok, Kai Meng; Li, Yong Jie

doi:https://doi.org/10.5194/amt-17-2415-2024

Articles | Volume 17, issue 8

https://doi.org/10.5194/amt-17-2415-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-17-2415-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 8

Research article

|

23 Apr 2024

Research article |

| 23 Apr 2024

Response of protonated, adduct, and fragmented ions in Vocus proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS)

Fangbing Li, Dan Dan Huang, Linhui Tian, Bin Yuan, Wen Tan, Liang Zhu, Penglin Ye, Douglas Worsnop, Ka In Hoi, Kai Meng Mok, and Yong Jie Li

Supplement

https://doi.org/10.5194/amt-17-2415-2024-supplement

Data sets

Response of protonated, adduct, and fragmented ions in Vocus proton-transfer-reaction time-of-flight mass (PTR-ToF-MS) spectrometer Fangbing Li et al. https://zenodo.org/records/10947779

Short summary

The responses of protonated, adduct, and fragmented ions of 21 volatile organic compounds (VOCs) were investigated with varying instrument settings and relative humidity (RH) in a Vocus proton-transfer-reaction mass spectrometer (PTR-MS). The protonated ions of most VOCs studied show < 15 % variation in sensitivity, except for some long-chain aldehydes. The relationship between sensitivity and PTR rate constant is complicated by the influences from ion transmission and protonated ion fraction.