MS/MS daughter ion (m/z) | LXA4Intensity | 15-epi-LXA4Intensity | LXA4/15-epi-LXA4 |
---|---|---|---|
333 | 80.8 ± 4.3 | 96.4 ± 2.8* | 0.8 |
315 | 44.9 ± 4.8 | 51.1 ± 3.7 | 0.9 |
307 | 100.0 ± 0.0 | 97.7 ± 2.8 | 1.0 |
289 | 73.7 ± 2.6 | 79.3 ± 6.3 | 0.9 |
271 | 19.2 ± 3.2 | 25.2 ± 4.9 | 0.8 |
251 | 69.2 ± 2.0 | 80.2 ± 2.4* | 0.9 |
235 | 74.2 ± 9.1 | 92.5 ± 3.9 | 0.8 |
233 | 38.7 ± 6.5 | 44.6 ± 1.2 | 0.9 |
215 | 4.4 ± 1.0 | 9.9 ± 0.3* | 0.4 |
207 | 13.3 ± 2.0 | 13.6 ± 3.3 | 1.0 |
189 | 27.3 ± 1.8 | 36.8 ± 4.1 | 0.7 |
135 | 4.9 ± 1.4 | 7.0 ± 2.8 | 0.7 |
115 | 65.0 ± 2.4 | 76.5 ± 4.4* | 0.9 |
MS/MS spectra of LXA4 and 15-epi-LXA4 standards were measured with a Finnigan LCQ (see “Materials and Methods”). Intensity values represent the mean MS/MS daughter ion relative intensities ± S.E.M. from n = 3 (*P < .05, two-tailed Student’s ttest).