Figure 4

Representative first order mass spectra of naringin and isonaringin (A: source CID = 5, CID = 0); Representative quasi-MS/MS from first order precursor ions m/z 579.00 for naringin and isonaringin (B: source CID = 70, CID = 0); Representative quasi-MS/MS/MS from quasi-second order precursor ions m/z 271.40 for naringin and isonaringin (C: source CID = 70, CID = 30);. Representative quasi-MS⁴ from quasi-third order precursor ions m/z 151.16 for naringin and isonaringin (D: source CID = 70, CID = 30)