Table 3 Intra-day precision for the determination of 1,5-dicaffeoylquinic acid (DCQA) and chicoric acid (CA) contents
Compound | MST Concentration (mg/mL) | Intra-day (n = 3) | |
|---|---|---|---|
Measured content (mg/g) | RSD (%) | ||
DCQA | 50 | 1.238 | 1.00 |
60 | 1.236 | 0.42 | |
70 | 1.233 | 0.29 | |
CA | 50 | 0.389 | 1.21 |
60 | 0.389 | 0.15 | |
70 | 0.383 | 1.09 | |