Table 1 Quantitative results for flavonoids and phenolic acids of gentian by HPLC–MS/MS
Peak number | Compound | Observed m/z | Retention time | Conc. (mg/g) |
|---|---|---|---|---|
1 | Gallic acid | 168.9/124.9 | 3.79 | 109.87 |
2 | 3,4-Dihydroxybenzoic acid | 152.9/109 | 5.68 | 60.07 |
3 | Catechin | 288.8/244.9 | 7.27 | 26.52 |
4 | Caffeic acid | 178/135 | 7.95 | 6.21 |
5 | Syringic acid | 196.8/181.9 | 8.30 | 58.72 |
6 | Coumaric acid | 162.9/119 | 9.46 | 20.06 |
7 | Ferulic acid | 192.8/133.9 | 10.12 | 45.70 |
8 | Quercetin | 301/151 | 13.44 | 37.14 |
9 | Naringenin | 271/119 | 14.84 | 266.45 |