Table 2.
Identification and quantitation of phytochemicals in water extract of Eupatorium fortunei (WEF) using UPLC- MS/MS analysis.
| No | tR (min) | [M+H]+ (m/z) | Elemental composition | Error (ppm) | MS/MS fragments (m/z) | Identification* | Contents (mg/g) | |
|---|---|---|---|---|---|---|---|---|
| Calculated | ||||||||
| COUMARINS | ||||||||
| 1 | 17.58 | 187.03897 | 187.03905 | C11H6O3 | 0.413 | 159.04413, 149.04915, 131.04925 | Psoralen | 0.022 |
| 2 | 17.89 | 187.03897 | 187.03906 | C11H6O3 | 0.495 | 159.04413, 143.04914, 131.04923 | Angelicin | 0.011 |
| FLAVONOIDS | ||||||||
| 3 | 11.30 | 611.16066 | 611.11070 | C27H30O16 | 0.674 | 465.10291, 303.04932, 147.06511, 129.05473 | Rutin | 0.017 |
| 4 | 11.02 | 449.10784 | 449.10779 | C21H20O11 | 0.596 | 303.04977, 147.06514, 129.05476 | Quercitrin | 0.002 |
| 5 | 11.80 | 465.10275 | 465.10303 | C21H20O12 | −0.116 | 303.04980, 145.04956 | Isoquercitrin | 0.009 |
| 6 | 15.85 | 303.04993 | 303.04987 | C15H10O7 | −0.212 | 285.03949, 155.04890, 153.01811, 109.02841 | Quercetin | 0.008 |
| PHENOLICS | ||||||||
| 7 | 6.72 | 355.10236 | 355.10074 | C16H18O9 | −4.566 | 163.03891 | Neochlorogenic acid | 0.021 |
| 8 | 8.15 | 355.10236 | 355.10254 | C16H18O9 | 0.504 | 163.03889 | Chlorogenic acid | 0.022 |
| 9 | 8.16 | 395.13125 | 395.13129 | C17H24O9 | 0.093 | 233.07494, 185.04199, 85.02895 | Syringin | 0.030 |
| 10 | 9.05 | 181.04954 | 181.04962 | C9H8O4 | 0.451 | 163.03885, 135.04406 | Caffeic acid | 0.209 |
| 11 | 9.71 | 517.13405 | 517.13348 | C25H24O12 | −1.095 | 499.12347, 337.09146, 319.08123, 163.03885 | 1,3-Dicaffeoylquinic acid | 0.002 |
| 12 | 10.31 | 165.05462 | 165.05464 | C9H8O3 | 0.132 | 147.04395, 119.04934 | p-Coumaric acid | 0.115 |
| 13 | 11.98 | 195.06519 | 195.06540 | C10H10O4 | 1.072 | 177.05461, 163.03896,149.05971 | Ferulic acid | 0.036 |
| 14 | 13.85 | 165.05462 | 165.05470 | C9H8O3 | 0.501 | 147.04406, 103.05469 | o-Coumaric acid | 0.557 |
| MONOTERPENE | ||||||||
| 15 | 9.65 | 359.13366 | 359.13367 | C16H22O9 | 0.020 | 197.08078, 179.07008, 127.03909 | Sweroside | 0.013 |
*
compared with retention time and MS spectral data of authentic standards.