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. Author manuscript; available in PMC: 2011 Jul 22.
Published in final edited form as: Anal Chem. 2009 Aug 1;81(15):6156–6164. doi: 10.1021/ac900627n

Figure 3.

Figure 3

Expanded mass-to-charge regions around z6-z9 ions unique to ECD+CID in Figure 2. A) z7+2 and z8+2 ions are present in ECD+CID (top) experiment but absent under ECD alone conditions (bottom). B) z9+2 and z6+ ions are present in ECD+CID (top) experiment but absent under ECD alone conditions (bottom).