Table 2.
Most frequent abundant ions of selected stilbenoid and their glucuronides upon ionisation.
| Compound | MW | UGT | Parent ions | (m/z−) most abundant ions | |||||
|---|---|---|---|---|---|---|---|---|---|
| tPice | 244 | 242.5 | 224.5 | 200.5 | 158.6 | ||||
| tPice-Gluc | 420 | 1A10 | 418.8 | 242.6 | 208.3 | 174.2 | 112.8 | ||
| 289.0 | 242.9 | 174.2 | 112.6 | ||||||
| 242.8 | 200.6 | 199.4 | 158.7 | ||||||
| tA1 | 312 | 310.7 | 266.6 | 254.6 | 241.8 | 240.6 | 158.6 | ||
| tA1-Gluc | 488 | 1A10 | 486.9 | 311.0 | 255.0 | 240.6 | 174.7 | 112.6 | |
| 311.8 | 293.7 | 231.7 | 190.4 | 175.6 | |||||
| 1A7 | 487.2 | 310.5 | 254.4 | 174.5 | 114.7 | 112.9 | |||
| 293.7 | 190.4 | 175.5 | 132.6 | ||||||
| tA3 | 296 | 294.7 | 250.7 | 239.8 | 238.6 | 194.7 | 175.0 | 112.8 | |
| tA3-Gluc | 472 | 1A10 | 470.8 | 299.6 | 294.7 | 112.7 | 100.7 | ||
| 340.7 | 178.6 | 118.7 | |||||||
| 1A7 | 470.8 | 294.6 | 238.9 | 174.5 | 112.8 | ||||
| 340.7 | 178.6 | 160.5 | 118.7 | 112.7 | |||||
tPice, trans-piceatannol; tA1, trans-arachidin-1; tA3, trans-arachidin-3; MW, molecular weight; UGT, UDP-glucuronosyltransferases.