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. 2013 Apr 15;2(Spec Iss):S0011. doi: 10.5702/massspectrometry.S0011

Fig. 3. Spectra for the 1+ (normalized) and 2+ nitropeptides of (nY)AAAAAAK stoichiometry, the number indicates the nY position on the backbone (e.g., 4 stands for AAAnYAAAK).25) The result for an equimolar mixture of all seven isomers is added for 2+. The data were acquired using DV=5.4 kV, the He/N2 mixtures with 20% He (1+) and 40% He (2+), and t of 0.7 s (1+) and 0.2 s (2+).

Fig. 3. Spectra for the 1+ (normalized) and 2+ nitropeptides of (nY)AAAAAAK stoichiometry, the number indicates the nY position on the backbone (e.g., 4 stands for AAAnYAAAK).25) The result for an equimolar mixture of all seven isomers is added for 2+. The data were acquired using DV=5.4 kV, the He/N2 mixtures with 20% He (1+) and 40% He (2+), and t of 0.7 s (1+) and 0.2 s (2+).