Table 2.
MS parameters used for determination and identification of selected alkaloids in plant extract samples.
| Compound | Elemental Composition | Polarity | Theoretical (m/z) |
Measured (m/z) |
Major Fragment Ions | Error (ppm) |
ID Score [%] |
|---|---|---|---|---|---|---|---|
| Magnoflorine | C20H24NO4 [M + H]+ |
ESI+ | 341.7915 | 341.7917 | 296.7147 264.6899 236.7089 206.7327 |
−0.39 | 99.48 |
| Protopine | C20H20NO5 [M + H]+ |
ESI+ | 353.7653 | 353.7655 | 336.1209 274.6716 205.7380 188.7681 148.8711 |
−0.93 | 99.15 |
| Stylopine | C19H17NO4 [M + H]+ |
ESI+ | 331.7109 | 331.7105 | 277.8803 251.7101 175.7931 163.8332 148.8696 |
−0.48 | 99.63 |
| Palmatine | C21H22NO4 [M + H]+ |
ESI+ | 351.7872 | 351.7853 | 335.7442 307.7351 277.6835 249.6977 |
1.07 | 99.62 |
| Berberine | C20H18NO4 [M + H]+ |
ESI+ | 335.7426 | 335.7429 | 319.7029 305.6823 304.1893 291.6987 277.6827 |
−0.41 | 99.18 |
| Sanguinarine | C20H14NO4 [M + H]+ |
ESI+ | 331.7068 | 331.7065 | 316.6761 303.6993 288.6723 273.6853 245.7012 |
1.26 | 99.34 |
| Chelerythrine | C21H18NO4 [M + H]+ |
ESI+ | 347.7491 | 347.7489 | 331.7071 303.6990 274.6920 231.6968 |
1.19 | 99.56 |