TABLE 2.
Chromatographic and mass spectrometric data for AHLs identified by UPLC-MS
| Bacterial species | AHL | Chemical formula | Exact mass (Da) | rT (min)a | [M + H]+ (m/z)b | Error (ppm) |
|---|---|---|---|---|---|---|
| Nss. multiformis | C10-HSL | C14H25NO3 | 255.18344 | 2.35 | 256.1869 | −3.2 |
| Nss. briensis | 3-OH-C14-HSL | C18H32NO4 | 327.24096 | 3.02 | 328.2456 | −3.2 |
| Nb. vulgaris | C10:1-HSL | C14H23NO3 | 253.16779 | 2.15 | 254.1719 | −2.1 |
| Ns. moscoviensis | C8-HSL | C12H21NO3 | 227.15214 | 2.16 | 228.1589 | −4.8 |
a
rT, retention time.
b
Experimental m/z values of protonated molecules.