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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Int J Mass Spectrom. 2015 Feb 1;377:617–624. doi: 10.1016/j.ijms.2014.06.023

Figure 1. ETD/IIPT MS/MS spectra recorded on intact apomyoglobin.

Figure 1

(A) ETD spectrum recorded on (M+26H)26+ ions from apomyoglobin using a reaction time of 5 msec. (B–E) Spectra obtained by performing IIPT reactions on the ETD fragment ions in (A) for 20 msec, 40 msec, 80 msec, and 160 msec, respectively.