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. Author manuscript; available in PMC: 2009 Jun 15.
Published in final edited form as: J Am Soc Mass Spectrom. 2007 Oct 22;19(2):294–304. doi: 10.1016/j.jasms.2007.10.007

Figure 4.

Figure 4

EDD mass spectrum of the [M-4H]4− precursor ion of DS dp8, 3. The mass scale was divided into three regions for clarity. (A) m/z 155–460, (B) m/z 455–650, and (C) m/z 645–1100. Inset: observed product ions from the EDD and IRMPD MS/MS data of 3 combined and annotated using the scheme presented in Figure 2. The charge reduced species is indicated with a ▼ over the peak label.