Journal of Analytical Methods in Chemistry / 2015 / Article / Tab 1 / Research Article
Study of Grape Polyphenols by Liquid Chromatography-High-Resolution Mass Spectrometry (UHPLC/QTOF) and Suspect Screening Analysis Table 1 Glycoside flavonol [M-H]
− ions identified in hybrid grapes Seibel 19881 and Seyve Villard 12-347. Identification scores calculated with respect to the theoretical mass are reported. Numbers correspond to the peaks of chromatogram in Figure
2 (adapted from de Rosso et al., 2014 [
10 ]).
Peak Flavonols Formula Rt (min) M-H− Error (ppm) Experimental Theoretical / /1 Syringetin O -di-hexoside C29 H34 O18 14.00 669.1684 669.1672 1.7 2 Myricetin O -di-hexoside C27 H30 O18 14.15 641.1373 641.1359 2.1 3 Myricetin hexoside-glucuronide C27 H28 O19 14.16 655.1169 655.1152 2.5 4 Myricetin 3-O -galactoside C21 H20 O13 14.26 479.0839 479.0831 2.0 5 Myricetin 3-O -glucuronide C21 H18 O14 14.26 493.0635 493.0624 2.5 6 Myricetin 3-O -glucoside C21 H20 O13 14.31 479.0844 479.0831 2.9 7 Dihydroquercetin 3-O -hexoside C21 H22 O12 14.41 465.1046 465.1038 1.7 8 Rutin C27 H30 O16 14.68 609.1471 609.1461 1.6 9 Quercetin 3-O -galactoside C21 H20 O12 15.00 463.0894 463.0882 2.8 10 Quercetin 3-O -glucuronide C21 H18 O13 15.02 477.0687 477.0675 2.6 11 Laricitrin 3-O -hexoside C22 H22 O13 15.06 493.0998 493.0988 2.1 12 Quercetin 3-O -glucoside C21 H20 O12 15.06 463.0895 463.0882 2.9 13 Laricitrin 3-O -glucuronide C22 H20 O14 15.11 507.0789 507.0780 1.4 14 Kaempferol O -rhamnosyl-hexoside C27 H30 O15 15.25 593.1518 593.1512 1.0 15 Dihydroquercetin 3-O -rhamnoside C21 H22 O11 15.34 449.1097 449.1089 1.8 16 Isorhamnetin O -rhamnosyl-hexoside C28 H32 O16 15.37 623.1603 623.1618 −2.4 17 Kaempferol 3-O -galactoside C21 H20 O11 15.47 447.0938 447.0933 1.2 18 Syringetin 3-O -galactoside C23 H24 O13 15.58 507.1147 507.1144 0.3 19 Kaempferol 3-O -glucoside C21 H20 O11 15.65 447.0943 447.0933 2.3 20 Kaempferol 3-O -glucuronide C21 H18 O12 15.66 461.0730 461.0725 1.0 21 Syringetin 3-O -glucoside C23 H24 O13 15.73 507.1156 507.1144 2.6 22 Isorhamnetin 3-O -hexoside C22 H22 O12 15.78 477.1045 477.1038 1.3 23 Isorhamnetin 3-O -glucuronide C22 H20 O13 16.00 491.0838 491.0831 1.2 24 Dihydrokaempferol 3-O -rhamnoside C21 H22 O10 16.08 433.1147 433.1140 1.6