who concluded that it is not likely for a parent compound with m/z of a to have a TP with m/z > (50 + a) Da [10]. During the peakpicking process, each mass with intensity above a defined noise level (threshold: 10) was used to build a chromatogram within anm/z window of 20 mDa.
The chromatograms were smoothed by the Savitzky-Golay method (window size: 5 data points) before they were deconvoluted to generate peak lists containing m/z, retention time (RT) and peak intensity of each feature.