Table 2.
Calibration curves, LODs, and LOQs for the four flavonoids (1–4)
| Flavonoids | Calibration curve a | R 2 | P | Test range (μg/mL) | LOD b (ng) | LOQ c (ng) |
|---|---|---|---|---|---|---|
|
1 |
y = 20.981x-29.365 |
0.9997 |
<0.001 |
0.98 — 500.00 |
0.49 |
1.64 |
|
2 |
y = 32.967x + 16.675 |
0.9995 |
<0.001 |
1.26 — 80.60 |
0.73 |
2.42 |
|
3 |
y = 22.738x + 6.6695 |
0.9994 |
<0.001 |
0.20 — 100.00 |
1.32 |
4.39 |
| 4 | y = 33.411x + 10.376 | 0.9992 | <0.001 | 0.20 — 100.00 | 1.20 | 3.99 |
ay = peak area and x = concentration (μg /mL).
bLimit of detection (S/N = 3).
cLimit of quantification (S/N = 10).