Table 1 MS date for characterization of compounds in Dendrobium officinale by UHPLC-ESI–MS/MS
From: Simultaneous identification and determination of flavonoids in Dendrobium officinale
Peak no | RT (min) | Negative ions (m/z) | MSn | Identification |
|---|---|---|---|---|
1 | 7.45 | 593[M-H]− | MS2: 503.19, 473.01, 383.11, 353.09 | Apigenin-6,8-di-C-β-d-glucoside |
2 | 9.82 | 563[M-H]− | MS2: 503.08, 473.04, 443.08, 383.10, 353.07 | Apigenin-6-C-β-d-xyloside-8-C-β-d-glucoside |
3 | 10.85 | 563[M-H]− | MS2: 503.07, 473.03, 443.10, 383.06, 353.05 | Isoschaftoside |
4 | 11.58 | 563[M-H]− | MS2: 473.07, 443.10, 383.10, 353.09 | Schaftoside |
5 | 14.87 | 563[M-H]− | MS2: 473.09, 443.10, 383.18, 353.12 | Apigenin-6-C-β-d-glucoside-8-C-β-d-xyloside |
6 | 19.28 | 609[M-H]− | MS2: 301.04, 271.09; MS3: 271.07, 255.08, 179.00, 151.01 | Rutin |
7 | 20.04 | 577[M-H]− | MS2: 457, 383 | Isoviolanthin |
8 | 20.18 | 577[M-H]− | MS2: 457, 383 | Violanthin |
9 | 21.27 | 579[M-H]− | MS2: 417 | Naringin |