Figure 4. Comparison of intensities of the precursor ion m/z = 905.4727 and it fragmental ions at different collision energy values. Intensity and order of the fragment ions at CE of 28.12 eV. Figure shows the following order of decreasing intensities: y7 (m/z = 925.4778), y4 (m/z = 597.3031) and b5 (m/z = 545.2566) (А). At collision energy equal to СЕ=35.15 eV we observed the same order of the fragmental ions with slightly decreased total intensity (B). At collision energy equal to СЕ=42.18 eV we observed different order of the fragmental ions with decreased intensity (C). Dependence of relative intensities of fragment ions of peptide precursor ion m/z = 905.4727 on CE (D).