Articles | Volume 8, issue 11
https://doi.org/10.5194/amt-8-4615-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-8-4615-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
03 Nov 2015
Research article |
| 03 Nov 2015
Peak-fitting and integration imprecision in the Aerodyne aerosol mass spectrometer: effects of mass accuracy on location-constrained fits
ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
Laboratory for Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
A. Othman
University of Zurich, Institute for Clinical Chemistry, Zurich, Switzerland
now at: Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
J. D. Allan
National Centre for Atmospheric Science, University of Manchester, Manchester, UK
School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UK
D. R. Worsnop
Aerodyne Research Inc., Billerica, Massachusetts, USA
J. D. Haskins
Massachusetts Institute of Technology, Boston, Massachusetts, USA
B. Sierau
ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
U. Lohmann
ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
A. A. Mensah
ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
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- A high-resolution time-of-flight chemical ionization mass spectrometer utilizing hydronium ions (H3O+ ToF-CIMS) for measurements of volatile organic compounds in the atmosphere B. Yuan et al. 10.5194/amt-9-2735-2016
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Latest update: 07 Mar 2025
Short summary
Peak-integration uncertainties in the Aerodyne high-resolution aerosol mass spectrometer (AMS) are analyzed in detail using a combination of empirical data analysis and Monte Carlo approaches. The most general conclusion, applicable to any mass spectrometer, is that non-zero mass accuracy leads to a percentage error in constrained peak fits, even for well-resolved peaks. For overlapping peaks, this mass-accuracy effect may be viewed as a reduction in the effective m/z-calibration precision.
Peak-integration uncertainties in the Aerodyne high-resolution aerosol mass spectrometer (AMS)...
