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. Author manuscript; available in PMC: 2016 Oct 10.
Published in final edited form as: Mass Spectrom Rev. 2009 May-Jun;28(3):425–447. doi: 10.1002/mas.20214

FIGURE 5.

FIGURE 5

Tandem mass spectra of the singly charged trypsinogen tryptic peptide SAASLNSR obtained by (A) 157 nm photodissociation, (B) post-source decay, (C) ion trap CID, (D) 2 keV TOF-TOF CID. Ions labeled by * have lost NH3. Peak labeled by I is an internal ion fragment (Cui et al., 2005).