Table 1.
HPLC-MS/MS parameters for analytes and internal standards
Compound | Transition ions (m/z) |
Dwell (msec) |
DP (V) |
CE (V) |
CXP (V) |
Retention time (min) |
Period |
---|---|---|---|---|---|---|---|
PE2 | 396.2 > 378.2 | 100 | 25 | 8 | 10.5 | 0.72 | 1 |
396.2 > 360.2 | 100 | 25 | 13 | 10.5 | 0.72 | ||
PE2-d4 | 400.2 > 382.2 | 100 | 25 | 9 | 10.5 | 0.71 | |
400.2 > 364.2 | 100 | 25 | 13 | 10.5 | 0.71 | ||
PGE2-G | 444.3 > 409.3 | 100 | 25 | 11 | 10.5 | 1.02 | 1 |
444.3 > 391.3 | 100 | 25 | 17 | 10.5 | 1.02 | ||
PGE2-G-d5 | 449.3 > 396.3 | 100 | 25 | 17 | 10.5 | 1.00 | |
PGE2 | 351.0 > 271.0 | 100 | −40 | −23 | −6.0 | 1.41 | 1 |
351.0 > 315.0 | 100 | −40 | −15 | −6.0 | 1.41 | ||
PGE2-d4 | 355.0 > 275.0 | 100 | −40 | −22 | −6.0 | 1.38 | |
355.0 > 319.0 | 100 | −40 | −15 | −6.0 | 1.38 | ||
PGD2 | 351.0 > 271.0 | 100 | −40 | −23 | −6.0 | 1.63 | 1 |
351.0 > 315.0 | 100 | −40 | −15 | −6.0 | 1.65 | ||
PGD2-d4 | 355.0 > 275.0 | 100 | −40 | −22 | −6.0 | 1.61 | |
355.0 > 319.0 | 100 | −40 | −15 | −6.0 | 1.61 | ||
15(S)-HETE-EA | 346.2 > 62.0 | 100 | 40 | 35 | 10 | 5.28 | 2 |
346.2 > 91.0 | 100 | 40 | 38 | 10 | 5.28 | ||
20-HETE-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 4.44 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 4.44 | ||
5,6-EET-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 6.85 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 6.85 | ||
8,9-EET-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 6.65 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 6.65 | ||
11,12-EET-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 6.41 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 6.41 | ||
14,15-EET-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 6.09 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 6.09 | ||
5,6-DiHETE-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 4.99 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 4.99 | ||
8,9-DiHETE-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 4.48 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 4.48 | ||
11,12-DiHETE-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 3.91 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 3.91 | ||
14,15-DiHETE-EA | 364.0 > 62.0 | 100 | 40 | 35 | 10 | 3.28 | 2 |
364.0 > 91.0 | 100 | 40 | 38 | 10 | 3.28 | ||
AA | 303.2 > 259.2 | 20 | −50 | −25 | 10 | 9.37 | 3 |
303.2 > 59.1 | 20 | −50 | −60 | 10 | 9.37 | ||
AA-d8 | 311.2 > 267.2 | 20 | −50 | −25 | 10 | 9.35 | |
311.2 > 59.1 | 20 | −50 | −60 | 10 | 9.35 | ||
AEA | 348.2 > 62.2 | 20 | 26 | 13 | 10 | 9.01 | 3 |
348.2 > 91.2 | 20 | 26 | 60 | 10 | 9.01 | ||
AEA-d8 | 356.2 > 62.2 | 20 | 26 | 13 | 10 | 9.01 | |
2-AG | 379.3 > 287.3 | 20 | 60 | 25 | 10 | 9.16 | 3 |
378.3 > 269.3 | 20 | 60 | 29 | 10 | 9.16 | ||
2-AG-d5 | 384.3 > 287.3 | 20 | 60 | 25 | 10 | 9.16 | |
387.3 > 269.4 | 20 | 60 | 29 | 10 | 9.16 | ||
PEA | 300.0 > 62.0 | 20 | 31 | 28 | 10 | 9.21 | 3 |
300.0 > 283.0 | 20 | 31 | 19 | 10 | 9.21 | ||
PEA-d4 | 304.0 > 62.0 | 20 | 31 | 28 | 10 | 9.20 | |
OEA | 326.0 > 62.0 | 20 | 40 | 30 | 10 | 9.29 | 3 |
326.0 > 309.0 | 20 | 40 | 20 | 10 | 9.29 | ||
OEA-d4 | 330.0 > 66.0 | 20 | 40 | 30 | 10 | 9.28 |
Deprotonation Potential = DP, Collision Energy = CE, Collision Exit Potential = CXP