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Bar graphs of (a) the isotope m/z distribution and (b) the neutral mass distribution of 200 product ions derived from CID simulation on a +57 precursor ion with m/z 700 Th. The fragment ion m/z was generated randomly with a probability of Gaussian distribution having a mean of 700 Th and a standard deviation of 200 Th, and the charge on the ion is randomly generated with uniform probability from +1 to +57.
