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. Author manuscript; available in PMC: 2006 Jan 20.
Published in final edited form as: J Am Soc Mass Spectrom. 2003 Dec;14(12):1477–1487. doi: 10.1016/j.jasms.2003.08.005

Figure 4.

Figure 4

ESI mass spectra of VEPIPY formed from ~1 mM sodium chloride and 1:1 water: methanol solution (a) without exchange and (b) after 50 s exchange with D2O at a pressure of 1 × 10−6 torr and FLEEL (c) without exchange and (d) after 50 s exchange with D2O at a pressure of 1 × 10−6 torr.