Articles | Volume 13, issue 10
Atmos. Meas. Tech., 13, 5293–5301, 2020
https://doi.org/10.5194/amt-13-5293-2020
Atmos. Meas. Tech., 13, 5293–5301, 2020
https://doi.org/10.5194/amt-13-5293-2020

Research article 07 Oct 2020

Research article | 07 Oct 2020

Improved chloride quantification in quadrupole aerosol chemical speciation monitors (Q-ACSMs)

Anna K. Tobler et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Tobler on behalf of the Authors (04 Aug 2020)  Author's response    Manuscript
ED: Publish as is (08 Aug 2020) by Mingjin Tang
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Short summary
Some quadrupole aerosol chemical speciation monitors (Q-ACSMs) have had issues with the quantification of particulate chloride, resulting in apparent negative chloride concentrations. We can show that this is due to the different behavior of Cl+ and HCl+, and we present a correction for the more accurate quantification of chloride. The correction can be applied to measurements in environments where the particulate chloride is dominated by NH4Cl.