Supplementary Table 4.
Results of freeze-thaw stability (three times) of all analytes (n = 6).
| Analytes | Concentration (ng/mL) | Mean ± SD | RSD | RE |
|---|---|---|---|---|
| Chlorogenic acid | 5 | 4.527 ± 0.130 | 2.86% | −9.46% |
| 50 | 50.717 ± 1.737 | 3.42% | 1.43% | |
| 500 | 483.647 ± 9.298 | 1.92% | −3.27% | |
| Hydroxysafflor yellow A | 5 | 5.115 ± 0.341 | 6.66% | 2.30% |
| 50 | 50.550 ± 1.276 | 2.52% | 1.10% | |
| 500 | 508.052 ± 21.065 | 4.15% | 1.61% | |
| Hyperoside | 5 | 5.384 ± 0.142 | 2.64% | 7.69% |
| 50 | 51.911 ± 1.743 | 3.36% | 3.82% | |
| 500 | 488.61 ± 16.242 | 3.33% | −2.37% | |
| Kaempferol-3-O-glucoside | 5 | 5.390 ± 0.067 | 1.24% | 7.80% |
| 50 | 53.303 ± 1.079 | 2.02% | 6.61% | |
| 500 | 524.815 ± 22.328 | 4.25% | 4.96% | |
| Kaempferol-3-O-rutinoside | 5 | 5.479 ± 0.134 | 2.45% | 9.58% |
| 50 | 52.642 ± 0.771 | 1.46% | 5.28% | |
| 500 | 539.455 ± 23.696 | 4.39% | 7.89% | |
| N-acetyl-L-glutamine | 5 | 5.109 ± 0.257 | 5.03% | 2.18% |
| 50 | 50.906 ± 3.522 | 6.92% | 1.81% | |
| 500 | 527.696 ± 15.640 | 2.96% | 5.54% | |
| p-Coumaric acid | 5 | 4.891 ± 0.196 | 4.01% | −2.18% |
| 50 | 53.579 ± 2.574 | 4.80% | 7.16% | |
| 500 | 510.543 ± 9.094 | 1.78% | 2.11% | |
| Rutin | 5 | 5.067 ± 0.211 | 4.17% | 1.35% |
| 50 | 53.579 ± 2.574 | 4.80% | 7.16% | |
| 500 | 548.234 ± 7.459 | 1.36% | 9.65% |