Table 2.
Qualitative LC–MS analysis of BcH and BcS.
| No | Rt min |
Negative mode m/z |
Positive mode m/z |
Tentatively identified compound | ||
|---|---|---|---|---|---|---|
| 1 | 3.00 | 177, 257, 369 | - | Bacopaside A derivatives | ||
| 2 | 3.81 | 1101, 1137, 1147 | 455, 487, 617, 779, 911 | j diglc-arab-acetylpentoside | ||
| 3 | 3.96 | 133, 285 | 287 | Luteolin(s) | ||
| 4 | 4.70 | 877, 1071, 1107, 1117 | 455, 909, 1095 | j diglc-arab-acetylpentoside | ||
| 5 | 5.92 | 269 | 271 | Apigenin(s) | ||
| 6 | 8.49 | 795, 927, 963, 973 | 455, 617, 779, 911, | Bacoside A3(s) | ||
| 7 | 8.81 | 795, 927, 963, 973 | 455, 617, 779, 911, | Bacopaside II(s) | ||
| 8 | 10.53 | 897, 933, 943, 993 | 455, 587, 749, 881, 921, 944 | Bacopaside X(s) | ||
| 9 | 11.15 | 897, 933, 943 | 473, 605, 767, 921 | Bacopasaponin C(s) | ||
| 10 | 11.51 | 897, 933, 943 | 473, 605, 767 | Bacopasaponin C isomer(s) | ||
| 11 | 12.02 | n.d | 274 | Imino diethanol | ||
| 12 | 12.30 | 795, 831, 1149 | 455, 617, 779, 797 | Unknown | ||
| 13 | 13.53 | 765, 801, 811 | 455, 587, 749 | Bacopaside IV or V | ||
| 14 | 14.12 | 845 | 473, 605, 767 | Bacopasaponin D | ||
| 15 | 14.60 | n.d | 455, 635 | Unknown | ||
| 16 | 14.81 | 963, 1059, 1095 | 455, 605, 737 | Bacoside derivatives | ||
| 17 | 16.61 | n.d | 473, 587 | Unknown | ||
| 18 | 16.72 | n.d | 605 | Unknown | ||
| 19 | 17.76 | 909, 945 | 455, 617, 911 | Bacoside A6 isomer | ||
| 20 | 18.15 | 909, 945 | 455, 617, 911 | Bacoside A6 isomer | ||
| 21 | 18.23 | 453, 488, 915, 925 | 881 | Deoxy-p-ara-glc-ara isomer | ||
| 22 | 18.54 | n.d | 445, 490 | Unknown | ||
| 23 | 18.72 | 453, 488, 915, 925 | 881 | Deoxy-p-ara-glc-ara isomer | ||
| 24 | 21.97 | n.d | 386, 455 | Unknown | ||
| 25 | 22.23 | n.d | 386, 473 | Unknown | ||
j-jujubogenin; p-pseudojujubogenin ara-arabinose; glc-glucose; (s)—reference substance; bolded—peak with the highest abundance; n.d. not detected.