Research Article
Simultaneous Determination of Phenolic Acids, Anthraquinones, Flavonoids, and Triterpenes of Cynomorii Herba in Different Harvest Times by LC-MS/MS
Table 1
Mass spectrometric parameters for all analytes.
| | Compounds | Precursor ion | Product ion | Fragmentor | CE |
| | Gallic acid | 169.0 | 125.0 | 90 | 8 | | Protocatechuic acid | 153.0 | 108.8 | 75 | 9 | | Catechin | 288.9 | 245.0 | 140 | 10 | | Protocatechuic aldehyde | 136.9 | 107.5 | 100 | 19 | | Epicatechin | 289.0 | 245.0 | 145 | 10 | | Ferulic acid | 193.1 | 133.8 | 75 | 10 | | Rutin | 609.0 | 300.0 | 235 | 39 | | Epicatechin gallate | 441.0 | 288.9 | 150 | 10 | | Luteolin-7-glucoside | 447.0 | 284.9 | 210 | 25 | | Luteolin | 285.0 | 133.0 | 160 | 33 | | Emodin | 269.0 | 225.0 | 140 | 21 | | Ursolic acid | 455.2 | 455.2 | 115 | 0 | | Caffeic acid (IS1) | 179.0 | 135.0 | 90 | 10 | | Astragalin (IS2) | 447.0 | 283.9 | 180 | 25 |
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