Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4187–4202, 2021
https://doi.org/10.5194/amt-14-4187-2021
Atmos. Meas. Tech., 14, 4187–4202, 2021
https://doi.org/10.5194/amt-14-4187-2021
Research article
07 Jun 2021
Research article | 07 Jun 2021

Measurement of iodine species and sulfuric acid using bromide chemical ionization mass spectrometers

Mingyi Wang et al.

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Latest update: 01 Feb 2023
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Short summary
Atmospheric iodine species are often short-lived with low abundance and have thus been challenging to measure. We show that the bromide chemical ionization mass spectrometry, compatible with both the atmospheric pressure and reduced pressure interfaces, can simultaneously detect various gas-phase iodine species. Combining calibration experiments and quantum chemical calculations, we quantify detection sensitivities to HOI, HIO3, I2, and H2SO4, giving detection limits down to < 106 molec. cm-3.