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. Author manuscript; available in PMC: 2009 Jul 15.
Published in final edited form as: Anal Chem. 2008 Jun 20;80(14):5596–5606. doi: 10.1021/ac8006076

Figure 2.

Figure 2

(A) Average intensity of the immonium ion peak is plotted against the number of associated residues in the assigned sequence (including spectra without any immonium ion present) for all data. (B) Regression lines for each residue are plotted with 99% confidence intervals.