Table 1. Fragmentation of Tetrasaccharide, D-Gal β (1-4) GlcNAc (6S) β (1-3) Gal (6S) β (1-4) GlcNAc (6S) in Multi-Stage Tandem MS. (m/z Values, Charge States and Assignments).
| MW | MS1 | MS2
(on [M-nH]n−) |
MS3 (on [M-H2O-nH]n− |
MS3 (on0,2A4) |
MS4
(on2,4A4) |
|---|---|---|---|---|---|
| 988.2 | 328.1 [M-3H]3− |
294.6 0,2A43− |
183.9 [Yi-H2O-OSO3H]− |
138.8 [OCHCH2OSO3]− |
261.4 Y3/B32− |
| 322.2 [M-H2O-3H]3− |
264.0 [Z1-H2O]− |
372.4 2,4A42− |
291.4 Y32− |
||
| 342.4 B32− |
268.2 [Y3-H2O]3− |
300.8 Y2− |
|||
| 351.4 C32− |
281.7 [Y1-H2O]− |
312.3 0,2X32− |
|||
| 372.4 2,4A42− |
342.5 B32− |
342.3 B32− |
|||
| 351.4 C32− |
443.8 B2− |
||||
| 461.9 C2− |
647.9 [2,4A4-OSO3H]− |