Table 1.
Calibration curves and LOD and LOQ data of 7 compounds investigated by HPLC.
| No. | Calibration curvesa | r2 | Linear range (mg/mL) | LODb (mg/mL) | LOQb (mg/mL) |
|---|---|---|---|---|---|
| 1 | Y = −26.3302 + 15081.4372X | 0.9998 | 0.02–0.48 | 0.0005 | 0.0016 |
| 2 | Y = 40.3439 + 13692.4304X | 0.9986 | 0.01–0.24 | 0.0048 | 0.0158 |
| 3 | Y = 667.3964 + 4408.5855X | 0.9999 | 0.07–3.50 | 0.0012 | 0.0035 |
| 4 | Y = −1578.7230 + 15651.8470X | 0.9993 | 0.10–1.20 | 0.0330 | 0.0992 |
| 5 | Y = 481.0792 + 6299.1942X | 0.9984 | 0.20–3.20 | 0.0010 | 0.0034 |
| 6 | Y = −2.0423 + 1721.8740X | 0.9999 | 0.05–1.20 | 0.0038 | 0.0119 |
| 7 | Y = 1228.5054 + 2292.3870X | 0.9999 | 0.20–2.40 | 0.0250 | 0.0840 |
a
Y is the value of peak area, and X is the value of the reference compound's concentration (μg/mL).
b
LOD and LOQ were determined at S/N of about 3 and 10, respectively.