Table 1.
Summary of major product ions following collisional activation of isotope labeled and unlabeled 9- and 13-HpODE-CE
| MS/MS of Isotope Labeled Species |
||||
|---|---|---|---|---|
| 9-HpODE-CEa | 13-HpODE-CE | D4-HpODE-CE b | HpODE-CE b | HpODE-CE c |
| [M+NH4]+ | [M+NH4]+ | [M+NH4]+ | [M+D+ND4]+ | [M+15NH4]+ |
| m/z 699 | m/z 699 | m/z 702 | m/z 703 | m/z 699 |
| 680 | 680 | 684 (+4) | 683 (+3) | 681 (+1) |
| 663 | 663 | 667 (+4) | 663(+0)/664(+1) | 663 (+0) |
| 647 | 647 | 651 (+4) | 647 (+0) | 647 (+0) |
| 645 | 645 | 649 (+4) | 645 (+0) | 645 (+0) |
| 540 | -- | 541 (+1) | 542 (+2) | 541 (+1) |
| 491 | -- | 494 (+3) | 491 (+0) | 491 (+0) |
| -- | 580 | 583 (+3) | 583 (+3) | 581 (+1) |
| -- | 563 | 566 (+3) | 563 (+0) | 563 (+0) |
| -- | 549 | 551(+3) | 549(+0) | 549(+0) |
| -- | 451 | 452(+1) | 451(+0) | 451(+0) |
a
Nominal m/z values of the individual ions
b
The number of deuterium atoms retained in each product ion is indicated in parentheses.
c
The number of 15N atoms retained in each product ion is indicated in parentheses.