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. Author manuscript; available in PMC: 2023 Jun 26.
Published in final edited form as: J Am Soc Mass Spectrom. 2021 Dec 7;33(1):100–110. doi: 10.1021/jasms.1c00284

Figure 2: Dependence of intramolecular hydrogen atom migration on precursor m/z for c- and z•-type ion populations.

Figure 2:

Hydrogen migration is shown as the average peak area ratios, with 50 Th bins, for [c+H]•/[c+2H] (left) and [z+2H]/[z+H]• (right) across all doubly charged fragment ions. EThcD (red triangle), ETcaD (pink cross), AI-ETD (green circle), and ETD without supplemental activation (blue square) are shown for each fragment ion type. Pie charts display the percentage of c-and z•-type isotopic distributions which display hydrogen migration.