Research Article
Simultaneous Determination of Phenolic Acids, Anthraquinones, Flavonoids, and Triterpenes of Cynomorii Herba in Different Harvest Times by LC-MS/MS
Table 3
Precision and stability of twelve components (n = 6).
| | Components | Concentration (ng·mL−1) | Intraday | Interday | Stability (n = 6) | | RSD (%) | Accuracy (%) | RSD (%) | Accuracy (%) | RSD (%) | Accuracy (%) |
| | Gallic acid | 505 | 3.1 | 103.7 | 0.1 | 103.7 | 3.08 | 96.6 | | Protocatechuic acid | 505 | 3.5 | 103.9 | 0.6 | 104 | 2.38 | 101.5 | | Catechin | 5100 | 3.1 | 103.2 | 1.8 | 101.1 | 3.70 | 94.6 | | Protocatechuic aldehyde | 560 | 2.4 | 103.3 | 1.7 | 104.2 | 5.34 | 102.8 | | Epicatechin | 540 | 2.4 | 104.8 | 1.6 | 104.2 | 3.54 | 95.3 | | Ferulic acid | 102 | 2.6 | 100.5 | 3.2 | 98.7 | 3.43 | 103.0 | | Rutin | 104 | 4.2 | 103.4 | 2.2 | 102.6 | 5.83 | 96.1 | | Epicatechin gallate | 505 | 2.6 | 104.5 | 2.0 | 102.9 | 8.32 | 82.6 | | Luteolin-7-glucoside | 101 | 3.2 | 103.7 | 1.2 | 102.9 | 4.70 | 104.9 | | Luteolin | 100 | 3.0 | 102.7 | 2.9 | 101.3 | 8.98 | 93.6 | | Emodin | 2 | 4.4 | 101.1 | 1.2 | 102.0 | 4.53 | 110.8 | | Ursolic acid | 99 | 3.1 | 103.3 | 0.5 | 103.3 | 5.58 | 105.9 |
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