Peak-fitting and integration imprecision in the  Aerodyne aerosol mass spectrometer: effects of mass accuracy  on location-constrained fits

C. Corbin, J.; Othman, A.; D. Allan, J.; R. Worsnop, D.; D. Haskins, J.; Sierau, B.; Lohmann, U.; A. Mensah, A.

doi:https://doi.org/10.5194/amt-8-4615-2015

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.

https://doi.org/10.5194/amt-8-4615-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 11

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

J. C. Corbin, A. Othman, J. D. Allan, D. R. Worsnop, J. D. Haskins, B. Sierau, U. Lohmann, and A. A. Mensah

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Final revised paper (published on 03 Nov 2015)
Preprint (discussion started on 02 Apr 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C1117: 'Review of anonymous referee #1', Anonymous Referee #1, 12 May 2015
- AC C2689: 'Response to Referee #1', J. C. Corbin, 26 Aug 2015
SC C1266: 'Citation request / comment on Corbin et al', Michael Cubison, 27 May 2015
- AC C2715: 'Response to comment by M. J. Cubison', J. C. Corbin, 26 Aug 2015
RC C1287: 'Review for „Peak fitting and integration uncertainties for the Aerodyne Aerosol Mass Spectrometer” by J.C. Corbin and coworkers.', Anonymous Referee #2, 29 May 2015
- AC C2698: 'Response to Referee #2', J. C. Corbin, 26 Aug 2015

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.