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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