Table III. Selected ECD fragmentation ions identified in asynchronous H1.2SNP A18V Nα-ac S173ph.
| Ion Type | Charge State | MS m/z | Theoretical m/z | Mass Error (ppm) |
|---|---|---|---|---|
| c16 | 1+ | 1519.7735 | 1519.7738 | 0.21 |
| c16 | 2+ | 760.3914 | 760.3903 | 1.48 |
| c18 | 2+ | 858.4522 | 858.4516 | 0.70 |
| c19 | 2+ | 907.9835 | 907.9851 | 1.76 |
| c20 | 2+ | 972.5359 | 972.5343 | 1.69 |
| c21 | 2+ | 1036.5829 | 1036.5818 | 1.05 |
| c21 | 3+ | 691.3909 | 691.3901 | 1.14 |
| c22 | 2+ | 1100.6297 | 1100.6294 | 0.31 |
| c22 | 3+ | 734.0893 | 734.0888 | 0.67 |
| c23 | 3+ | 757.7681 | 757.7673 | 1.12 |
| c24 | 3+ | 781.4460 | 781.4467 | 0.87 |
| c25 | 2+ | 1235.7137 | 1235.7142 | 0.41 |
| c25 | 3+ | 824.1459 | 824.1444 | 1.83 |
| c26 | 3+ | 866.8442 | 866.8431 | 1.29 |