Figure 2.

Aqueous humor (AH)‐spectral library generation and its overall characteristics. A) Distribution of precursor m/z. B) Counts of different precursor charge states. C) Distribution of peptide length. D) The number of modified peptides and distribution of different modifications. E) The number of proteotypic peptides for each protein. F) Proportion of fragment ions per precursor ion. G) Percentage of b, y ions. H) Proportion of different charges of fragment ions.