Table 2 Retention times (Rt), extracted ions and corresponding molecular fragments for the studied triterpenoids
Triterpenoid | Rt (min) | Extracted ion (m/z) | Fragment |
|---|---|---|---|
Azadirachtin A (14) | 7.4 | 703 | [M + H-H2O]+ |
Azadirachtin B (15) | 8.6 | 645 | [M + H-H2O]+ |
Salannin (9) | 21.3 | 597 | [M + H]+ |
3-Deacetylsalannin (10) | 18.5 | 555 | [M + H]+ |
Nimbin (6) | 18.0 | 541 | [M + H]+ |
6-Deacetylnimbin (7) | 14.7 | 499 | [M + H]+ |
Nimbinene (12) | 20.7 | 483 | [M + H]+ |
6-Deacetylnimbinene (13) | 16.5 | 441 | [M + H]+ |
Nimbanal (8) | 17.8 | 511 | [M + H]+ |
Salannol acetate (11) | 28.4 | 599 | [M + H]+ |
Azadiradione (3) | 16.3 | 451 | [M + H]+ |
Epoxyazadiradione (4) | 27.4 | 467 | [M + H]+ |
Azadirone (1) | 31.7 | 437 | [M + H]+ |
Gedunin (5) | 20.4 | 483 | [M + H]+ |
Nimocinol (2) | 29.9 | 453 | [M + H]+ |