Research Article
HPLC-Fingerprints and Antioxidant Constituents of Phyla nodiflora
Table 4
Analytical results of intra- and interday variability of onopordin (4) and eupafolin (7).
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Analytes | Precision () | | Concentration (g/mL) | Intraday R.S.D. (%) | Interday R.S.D. (%) |
| | 4 | 0.8 | 2.34 | 1.29 | | 6 | 2.58 | 4.68 | | 12 | 2.89 | 1.30 |
| | 7 | 2 | 2.31 | 6.99 | | 4.5 | 3.49 | 1.50 | | 8.5 | 3.97 | 2.95 |
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