Articles | Volume 9, issue 7
https://doi.org/10.5194/amt-9-3263-2016
https://doi.org/10.5194/amt-9-3263-2016
Research article
 | 
25 Jul 2016
Research article |  | 25 Jul 2016

Applications and limitations of constrained high-resolution peak fitting on low resolving power mass spectra from the ToF-ACSM

Hilkka Timonen, Mike Cubison, Minna Aurela, David Brus, Heikki Lihavainen, Risto Hillamo, Manjula Canagaratna, Bettina Nekat, Rolf Weller, Douglas Worsnop, and Sanna Saarikoski

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Short summary
The applicability, methods and limitations of constrained peak fitting on mass spectra of low mass resolving power (m∕Δm50 ∼ 500) recorded with a time-of-flight aerosol chemical speciation monitor (ToF-ACSM) are explored. Calibration measurements and ambient data are used to exemplify the methods that should be applied to maximise data quality and assess confidence in peak-fitting results.