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. Author manuscript; available in PMC: 2017 Jun 21.
Published in final edited form as: Anal Chem. 2015 Aug 31;87(18):9396–9402. doi: 10.1021/acs.analchem.5b02242

Figure 2.

Figure 2

Comparison of 193 nm UVPD efficiencies before and after Schiff base modification of KLVANNTRL (1+). (a) MS2 UVPD mass spectrum for unlabeled peptide and (b) MS3 UVPD mass spectrum following on-line derivatization using the dual spray reactor.