Articles | Volume 12, issue 9
Atmos. Meas. Tech., 12, 4867–4886, 2019
https://doi.org/10.5194/amt-12-4867-2019
Atmos. Meas. Tech., 12, 4867–4886, 2019
https://doi.org/10.5194/amt-12-4867-2019

Research article 11 Sep 2019

Research article | 11 Sep 2019

An extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF) for online measurement of atmospheric aerosol particles

Felipe D. Lopez-Hilfiker et al.

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An extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF) for online measurement of atmospheric aerosol particles Felipe D. Lopez-Hilfiker, Veronika Pospisilova, Wei Huang, Markus Kalberer, Claudia Mohr, Giulia Stefenelli, Joel A. Thornton, U. Baltensperger, Andre S. H. Prevot, and Jay G. Slowik https://doi.org/10.5281/zenodo.3376726

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Short summary
We present a novel, field-deployable extractive electrospray time-of-flight mass spectrometer (EESI-TOF), which provides real-time, near-molecular measurements of organic aerosol at atmospherically relevant concentrations, addressing a critical gap in existing measurement capabilities. Successful deployments of the EESI-TOF for laboratory measurements, ground-based ambient sampling, and aboard a research aircraft highlight the versatility and potential of the EESI-TOF system.