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. Author manuscript; available in PMC: 2013 Feb 7.
Published in final edited form as: Anal Chem. 2012 Jan 12;84(3):1533–1539. doi: 10.1021/ac203210a

Figure 6.

Figure 6

A) A comparison between spectra of RE-CID and fHCD (mirrored axis) for the analysis of a phosphorylated peptide. B) fHCD afforded significantly higher spectral quality for this modified peptide as evidenced by the distribution of XCorrs.