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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Int J Mass Spectrom. 2009 Jun 1;283(1-3):85–93. doi: 10.1016/j.ijms.2009.02.012

Figure 4.

Figure 4

Isotopic distribution patterns of backbone fragments after ETD, ETcaD, and CAD for (a) dC6, (b) dA6, (c) dG6, and (d) dT6. ETD of dT6 was not possible for the 3+ charge state, and no backbone cleavages were observed upon ETD of the 2+ charge state.