Table 1b.
The identification of the phenolic compounds in chamomile flower (C), tarragon leaf (T) and Mexican arnica flower (MA).
| Compound | Peak Number | tR | [M+H]+ and [M−H]− m/z | Major fragments m/z | UV λmax (mn) | ||
|---|---|---|---|---|---|---|---|
|
| |||||||
| C | T | MA | (min) | ||||
|
| |||||||
| Flavone C-glucoside | |||||||
| Apigenin 6,8-di-C-glucosidea | nd | 6 | nd | 15.3 | 595/593 | 577, 475, 455 | 270, 338 |
| Flavone aglycones | |||||||
| Luteolina | nd | nd | 22 | 47.9 | 287/285 | 256, 266, 348 | |
| Apigenina | 36c | nd | nd | 51.9 | 271/269 | 268, 338 | |
| Dihydroxy-tetramethoxyflavoneb | 37 | nd | nd | 60.2 | 375/373 | 256, 272, 352 | |
| Flavonol O-glycosides | |||||||
| Quercetin 3-O-glucuronide-7-O-galactosideb | nd | nd | 3 | 9 | 641/639 | /303 | 256, 266, 354 |
| Quercetin 3-O-glucuronide-7-O-glucosideb | nd | nd | 4 | 10.1 | 641/639 | /303 | 256, 266, 354 |
| Hexahydroxyflavone 3-O-dihexosidea | 4 | nd | nd | 13.7 | 641/639 | 479, 317/315 | 256, 266, 356 |
| Quercetin 3-O-rhamnosylgalactosidea | nd | nd | 8c | 23.1 | 611/609 | 303/301 | 256, 266, 354 |
| Quercetin 3- O-rutinosidea | nd | nd | 9c | 24.2 | 611/609 | 303/301 | 256, 266, 354 |
| Quercetin 7-O-glucosidea | nd | 10 | nd | 24.7 | 465/463 | 303/301 | 254, 266, 370 |
| Petuletin 3-O-robinobiosideb | nd | 13c | nd | 24.7 | 641/639 | 495, 333/331 | 258, 266sh, 350 |
| Pentahydroxyflavone 7-O-hexosidea | 10 | nd | nd | 25.7 | 465/463 | 303/301 | 256, 370 |
| Quercetin 3-O-galactosidea | nd | nd | 10c | 26.3 | 463/461 | 303/301 | 256, 266sh,352 |
| Petuletin 3-O-glucosidea | nd | 14c | nd | 26.6 | 495/493 | 333/331 | 258, 266sh, 350 |
| Quercetin 3-O-glucosidea | nd | nd | 11c | 27.1 | 463/461 | 303/301 | 256, 266sh,352 |
| Pentahydroxymethoxyflavone 7-O-glucosideb | 13 | nd | nd | 27.3 | 495/493 | 333/331 | 256, 370 |
| Pentahydroxymethoxyflavone glucosideb | 14 | nd | nd | 27.6 | 495/493 | 333/331 | 260, 360 |
| Petuletin 3-O- manolylrobinobiosidea | nd | 15 | nd | 28 | 727/725 | 495, 333/331 | 258, 266sh, 350 |
| Quercetin 3-O-glucuronidea | nd | nd | 12 | 28.2 | 479/447 | 303/301 | 256, 266sh,352 |
| Quercetin 3-arabinosidea | nd | nd | 14 | 29 | 435/433 | 303/301 | 256, 266, 354 |
| Kaempferol-3-O-rutinosidea | nd | nd | 13c | 29 | 595/593 | 287/285 | 266, 348 |
| Isorhamonetin-3-O-rhamnosylgalactosidea | 21 | 16 | nd | 29.5 | 625/623 | 479, 317/315 | 258, 266sh, 350 |
| Isorhamonetin-3-O-rutinosidea | nd | 18 | nd | 30.1 | 625/623 | 479, 317/315 | 258, 266sh, 350 |
| Syringenin 3-O-rhamnosylhexosideb | nd | 19 | nd | 30.4 | 655/653 | 509, 347/347 | 258, 266sh, 350 |
| Kaempferol 3-O-glucosidea | nd | nd | 15c | 32.1 | 449/447 | 287/285 | 266, 348 |
| Kaempferol-3-O-glucuronidea | nd | nd | 19 | 32.7 | 465/463 | 287/285 | nd |
| Isorhamnetin 3-O-glucosidea | 21 | 23 | nd | 32.9 | 479/477 | 317/315 | 256, 266, 350 |
| Petuletin 3-O-manolylrhamnosylhexosideb | nd | 24 | nd | 33.2 | 741/739 | 333/331 | 256, 266, 350 |
| Isorhamnetin 7-O-glucosidea | 20 | nd | nd | 33.6 | 479/477 | 317/315 | 254, 372 |
| Petuletin 7-O-glucosideb | 22c | nd | nd | 34.3 | 495/493? | 333/331 | 258, 368 |
| Tetrahydroxy-dimethooxyflavone 7-O-glucosideb | 23 | nd | nd | 34.6 | 509/507 | 347/345 | 258, 368 |
| Pentahydroxymethoxyflavone caffeoylglucosideb | 25 | nd | nd | 36.1 | 657/655 | 333/331 | 278, 338 |
| Pentahydroxymethoxyflavone caffeoylglucosideb | 26 | nd | nd | 37.4 | 657/655 | 333/331 | 278, 334 |
| Quercetin 3-O-caffeoylglucosidea | nd | nd | 21 | 37.3 | 627/625 | 303/301 | 256, 266sh, 336 |
a
the identification was confirmed by comparison to standards or positively identified compounds in reference plant samples;
b
identified tentatively from the LC-MS data;
c
reported in the plant previously;
d
previous identification was corrected; nd: not determined.