Enhanced spectral analysis of C-TOF Aerosol Mass Spectrometer data: Iterative residual analysis and cumulative peak fitting

► Improved peak analysis due to cumulative peak fitting and iterative residual analysis. ► Simulations of the separation power of the algorithm using a synthetic double-peak system. ► Demonstrations of limits for peak fitting for C-TOF AMS, HR-TOF AMS and PTR-TOF. ► Successful separation of isobars using a C-TOF AMS.