Figure 6

Proposed fragmentation pathway of flavonolignans in (a) negative and (b) positive ion-mode. RDA = retro-Diels-Alder fission, HRF = heterocyclic ring fission and BFF = benzofuran forming fission.

Proposed fragmentation pathway of flavonolignans in (a) negative and (b) positive ion-mode. RDA = retro-Diels-Alder fission, HRF = heterocyclic ring fission and BFF = benzofuran forming fission.