Table 2.
Compounds 1–9 identified in the rhizosphere soil of L. cymbulifera by UHPLC-MS in positive ion mode.
| Peak no. | tR(min) | Identified compound | Molecular formula | Molecular weight | Precursor Ion (m/z) | Collision energy (eV) | Characteristic fragment (m/z) |
|---|---|---|---|---|---|---|---|
| 1 | 1.785 | 9 | C10H18O2 | 170 | 193 | 20 | 152, 135, 107 |
| 2 | 4.019 | 8 | C15H24O2 | 236 | 237 | 20 | 219, 204, 189 |
| 3 | 6.576 | 7 | C15H22O4 | 266 | 267 | 10 | 249, 231, 213 |
| 4 | 7.044 | 2 | C19H28O4 | 320 | 321 | 10 | 303, 285, 275 |
| 5 | 7.607 | 1 | C19H28O4 | 320 | 321 | 10 | 303, 285, 267 |
| 6 | 9.279 | 6 | C15H22O3 | 250 | 251 | 20 | 233, 215, 187 |
| 7 | 19.259 | 5 | C15H16O3 | 244 | 245 | 20 | 227, 209, 181 |
| 8 | 26.388 | 3 | C15H22O2 | 234 | 235 | 10 | 217, 207, 189 |
| 9 | 27.838 | 4 | C15H17O3 | 344 | 345 | 10 | 245, 227, 199 |