t R(min) | MW (calculated mass) | M-H (observed mass) | Proposed compound | Area (%) |
---|---|---|---|---|
Betel leaf | Â | Â | Â | |
1.454 | 138.03 | 137.07 | p-hydroxybenzoic acid* | 44.9 |
2.102 | 164.16 | 163.09 | Eugenol | 2.95 |
2.427 | 338.19 | 337.19 | 4-p-coumaroylquinic acid | 1.6 |
Areca nut | Â | Â | Â | |
1.128 | 866 | 865.20 | Procyanidin trimer | 1.56 |
1.290 | 578 | 577.12 | Procyanidin dimers (B1) | 25.34 |
1.614 | 290.26 | 289.19 | Catechin* | 41.44 |
2.585 | 866 | 865.37 | Procyanidin trimers | 2.93 |
2.909 | 578 | 577.24 | Procyanidin dimers (B2) | 0.6 |
3.718 | 624 | 623.16 | isorhamnetin 3-O-rutinoside | 3.53 |
Gambir | Â | Â | Â | Â |
0.805 | 192.17 | 191.05 | Quinic acid* | 21.77 |
1.293 | 290.26 | 289.17 | (+)-catechin | 6.02 |
1.619 | 578.52 | 577.19 | Procyanidin dimer (B1) | 17.96 |
2.268 | 562 | 561.12 | (epi)afzelechin-(epi)catechin | 7.06 |
2.431 | 580.1 | 579.10 | Proanythocyanidin dimer | 12.16 |
2.593 | 578.52 | 577.15 | Proanthocyanidin dimer | 0.8 |
2.917 | 290.26 | 289.12 | (-)-epicatechin | 1.61 |
3.726 | 290.26 | 289.12 | Catechin Isomer | 5.34 |
5.505 | 578.52 | 577.11 | Proanthocyanidin dimer | 3.05 |
5.342 | 580.1 | 579.10 | Proanthocyanidin dimer | 3.07 |
6.28 | 610 | 609.19 | Quercetine diglycoside | 14.79 |
6.649 | 450.39 | 451.22 | Cyanidin-3-O-glucoside | 4.3 |
7.631 | 302.24 | 301.11 | Quercetin | 2.02 |
8.116 | 286.06 | 285.08 | Kaempferol | 0.05 |
Betel quid | Â | Â | Â | |
0.969 | 192.17 | 191.07 | Quinic acid* | 10.76 |
1.295 | 164 | 163.08 | p-coumaric acid | 4.55 |
2.426 | 164 | 163.05 | Eugenol | 3.89 |
2.587 | 134.18 | 133.02 | Chavicol | 1.26 |
3.071 | 138.03 | 137.03 | p-hydroxybenzoic acid | 1.52 |
6.460 | 150.174 | 149.08 | hydroxychavicol | 0.62 |
8.078 | 330 | 329.24 | 3,30-di-O-methyl ellagic acid | 0.16 |
Betel quid with calcium hydroxide | Â | |||
1.453 | 164.2 | 163.05 | Eugenol | 1.37 |
2.425 | 164.2 | 163.04 | p-coumaric acid | 1.61 |
7.098 | 150.174 | 149.07 | Hydroxychavicol* | 2.1 |