Table 1.
LC–MS/MS data in the positive-ion mode of standard ginsenosides.
| Ginsenoside | Rt (min) | Formula | Formula (mass) |
(m/z) |
Product ions (m/z) | Collision energy | |
|---|---|---|---|---|---|---|---|
| [M+Na]+ | [M-2H2O+H]+ | ||||||
| Rg1 | 15.8 | C42H72O14 | 800.0 | 823.4 | — | 643.6 [M-glc-H2O+Na]+ 203.0 [glc+H2O+Na]+ |
40 |
| Re | 15.8 | C48H82O18 | 946.0 | 969.5 | — | 789.2 [M-glc-H2O+Na]+ 203.0 [glc+H2O+Na]+ |
50 |
| Rf | 27.0 | C42H72O14 | 800.0 | 823.3 | — | 481.0 [M-(glc+glc)-H2O+Na]+ 365.0 [(glc+glc)+H2O+Na]+ |
60 |
| Rb1 | 29.0 | C54H92O23 | 1108.0 | 1131.8 | — | 789.8 [M-(glc+glc)-H2O+Na]+ 365.3 [(glc+glc)+H2O+Na]+ |
60 |
| Rc | 30.2 | C53H90O22 | 1078.0 | 1101.7 | — | 790.7 [M-(glc+ara)-H2O+Na]+ 335.2 [(glc+ara)+H2O+Na]+ |
60 |
| Rb2 | 31.2 | C53H90O22 | 1078.0 | 1101.5 | — | 789.5 [M-(glc+ara)-H2O+Na]+ 335.2 [(glc+ara)+H2O+Na]+ |
60 |
| Rd | 33.2 | C48H82O18 | 946.0 | 969.5 | — | 789.5 [M-glc-H2O+Na]+ 365.3 [(glc+glc)+H2O+Na]+ 203.0 [glc+H2O+Na]+ |
50 |
| Rg2 | 30.8 | C42H72O13 | 784.0 | 807.5 | — | 481.0 [M-( rha+glc)-H2O+Na]+ 349.2 [(rha+glc)+H2O+Na]+ |
56 |
| Rh1 | 31.4 | C36H62O9 | 638.0 | — | 603.0 | 423.3 [M-glc-H2O+H]+ | 10 |
| F1 | 33.9 | C36H58O9 | 638.0 | 661.4 | — | 481.2 [M-glc-H2O+Na]+ 202.9 [glc+H2O+Na]+ |
34 |
| F2 | 39.8 | C42H72O13 | 784.0 | 807.3 | — | 627.2 [M-glc-H2O+Na]+ 203.0 [glc+H2O+Na]+ |
40 |
| Rg3 | 41.6 | C42H72O13 | 784.0 | 807.5 | — | 465.0 [M-(glc+glc)-H2O+Na]+ 365.0 [(glc+glc)+H2O+Na]+ |
67 |
| PPT | 44.5 | C30H52O4 | 476.0 | — | 441.0 | 423.3 [M-3H2O+H]+ | 10 |
| Compound K | 46.9 | C36H62O8 | 622.0 | 645.6 | — | 465.2 [M-glc-H2O+Na]+ 203.0 [glc+H2O+Na]+ |
30 |
| Rh2 | 47.5 | C36H62O8 | 622.0 | — | 587.0 | 407 [M-glc-H2O+H]+ | 10 |