Table 2 Accuracy for the determination of 1,5-dicaffeoylquinic acid (DCQA) and chicoric acid (CA) contents
Compound | Spiked amount (mg) | Recovery (%) | Average (%) | RSD (%) | |||
|---|---|---|---|---|---|---|---|
1st | 2nd | 3rd | 4th | ||||
DCQA | 0.125 | 103.96 | 103.49 | 103.79 | 103.33 | 103.64 | 0.27 |
0.25 | 103.83 | 103.04 | 103.51 | 103.66 | 103.51 | 0.33 | |
0.5 | 101.16 | 101.90 | 101.61 | 101.73 | 101.60 | 0.31 | |
1.0 | 103.96 | 103.52 | 103.90 | 104.18 | 103.89 | 0.27 | |
CA | 0.125 | 108.49 | 107.61 | 106.67 | 108.02 | 107.70 | 0.72 |
0.25 | 106.51 | 104.16 | 106.48 | 107.01 | 106.04 | 1.20 | |
0.5 | 101.46 | 99.33 | 101.63 | 101.40 | 100.96 | 1.08 | |
1.0 | 97.60 | 99.64 | 99.66 | 97.55 | 98.61 | 1.22 | |