Table 2.
Phenolic Compounds in Elder Flower
peak |
tR (min) |
[M + H]+/ [M - H]− (m/z) |
[A + H]+/[A - H]))− and other NI ions (m/z) |
UV/vis Abs λmax (nm) |
identification |
---|---|---|---|---|---|
hydroxycinnamoylquinic acids, hydroxycinnamoyl-hexoside | |||||
E1 | 7.62 | −/353 | −/191, 179, 173, 135 | 240, 298sh, 326 | 3-caffeyolquinic acida |
E2 | 11.10 | −/353 | −/191, 179, 173, 135 | 240, 298sh, 326 | chlorogenic acida |
E3 | 12.43 | −/353 | −/191, 179, 173, 135 | 240, 298sh, 326 | 4-caffeoylqunic acida |
E4 | 14.72 | −/341 | −/179 | 240, 298sh, 326 | caffeoyl-hexose |
E5 | 16.58 | −/337 | −/191, 173, 163 | 230, 312 | p-coumaroylquinic acid |
E13B | 30.50 | −/515 | −/353, 191, 179, 173, 135 | b | 3,4-dicaffeoylquinic acida |
E14B | 33.26 | −/515 | −/353, 191, 179, 173, 135 | 240, 298sh, 326 | 3,5-dicaffeoylquinic acida |
E15 | 36.74 | −/515 | −/353, 191, 179, 173, 135 | 240, 298sh, 326 | 4,5-dicaffeoylquinic acida |
glycosylated flavonols (group II) | |||||
E6 | 19.82 | 757/755 | 465, 303/301 | 256, 266 sh, 352 | quercetin-3-O-triglycoside |
E7 | 23.68 | 641/639 | 479, 317/315 | 254, 266 sh, 354 | isorhamnetin-3-O-dihexoside |
E8 | 25.50 | 611/609 | 465, 303/301 | 256, 266 sh, 352 | rutina |
E9 | 27.40 | 465/463 | 303/301 | 256, 266 sh, 352 | quercetin 3-O-glucosidea |
E10 | 30.36 | 595/593 | 449, 287/285 | 266, 348 | kaempferol 3-O-rutinosidea |
E11 | 31.12 | 625/623 | 479, 317/315 | 254, 266 sh, 354 | isorhamnetin 3-O-rutinosidea |
E12 | 30.31 | 551/549 | 303/301 | b | quercetin 3-O-6″-malonylglucoside |
E13A | 30.41 | 449/447 | 287/284 | b | kaempferol 3-O-glucosidea |
E14A | 33.17 | 479/477 | 317/315 | b | isorhamnetin 3-O-glucosidea |
flavonol aglicones detected in the acidic hydrolyzed extract | |||||
E16 | 47.32 | 303/301 | 256, 372 | quercetina | |
E17 | 53.21 | 287/285 | 264, 370 | kaempferola | |
E18 | 53.83 | 317/315 | 256, 372 | isorhamnetina |
Identification with standard.
Not determined.