Table 1 Retention times and [M-H]- ions of identified peaks.
From: Antioxidant activity relationship of phenolic compounds in Hypericum perforatumL.
Peak | t R [min] | [M-H]-, m/z | Compound |
|---|---|---|---|
1 | 0.13 | 353 | caffeoylquinic acid |
463 | quercetin-3-O-β-D-galactopyranoside (hyperoside) | ||
609 | quercetin-3-O-rutinoside (rutin) | ||
2 | 0.16 | 447 | quercetin-3-O-α-L-rhamnopyranoside (quercitrin) |
3 | 0.34 | 301 | quercetin |
4 | 0.96 | 537 | I3, II8-biapigenin |
5 | 1.47 | 537 | amentoflavone (I3', II8-biapigenin) |
6 | 2.75 | 521 | protopseudohypericin |
7 | 2.87 | 519 | pseudohypericin |
8 | 3.69 | 505 | protohypericin |
9 | 3.83 | 503 | hypericin |
10 | 4.80 | 467 | hyperfirin |
11 | 4.95 | 481 | adhyperfirin |
12 | 5.53 | 535 | hyperforin |
13 | 5.68 | 549 | adhyperforin |