Table 1.
Regression equation, correlation coefficient (r2), limits of detection (LOD) and limits of quantitation (LOQ) for flavonoids and cycloartanol glycosides from S. frutescens L. by LC-UV/ELSD method.
| Analyte | Regression equation | r2 | LOD (µg/mL) | LOQ (µg/mL) |
|---|---|---|---|---|
| 1 | Y = 7.75e+003x−1.02e+004 | 0.9996 | 0.35 | 1.0 |
| 2 | Y = 7.35e+003x−5.48e+003 | 0.9998 | 0.35 | 1.0 |
| 3 | Y = 9.87e+003x−3.10e+003 | 0.9997 | 0.1 | 0.5 |
| 4 | Y = 9.68e+003x + 1.56e+002 | 0.9997 | 0.1 | 0.5 |
| 5 | Y = 1.78e+000x + 7.41e−001 | 0.9996 | 5 | 10 |
| 6 | Y = 1.71e+000x + 5.60e−001 | 0.9998 | 7.5 | 25 |
| 7 | Y = 1.62e+000x + 1.05e+000 | 0.9986 | 5 | 15 |
| 8 | Y = 1.67e+000x + 9.01e−001 | 0.9990 | 7.5 | 25 |