Articles | Volume 15, issue 14
https://doi.org/10.5194/amt-15-4295-2022
https://doi.org/10.5194/amt-15-4295-2022
Research article
 | 
28 Jul 2022
Research article |  | 28 Jul 2022

Temperature-dependent sensitivity of iodide chemical ionization mass spectrometers

Michael A. Robinson, J. Andrew Neuman, L. Gregory Huey, James M. Roberts, Steven S. Brown, and Patrick R. Veres

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Short summary
Iodide chemical ionization mass spectrometry (CIMS) is commonly used in atmospheric chemistry laboratory studies and field campaigns. Deployment of the NOAA iodide CIMS instrument in the summer of 2021 indicated a significant and overlooked temperature dependence of the instrument sensitivity. This work explores which analytes are influenced by this phenomena. Additionally, we recommend controls to reduce this effect for future field deployments.