Table 2.
Calibration data and LOQ of the herbicides
| Herbicides | Calibration (matrix) | Calibration range (ng mL−1) | Regression equation | r2 | Slope of matrix/slope of solvent | LOQ (ng g−1) |
|---|---|---|---|---|---|---|
| Pendimethalin | Solvent | 1–50 | y = 34837x + 5925.8 | 0.9995 | - | |
| Peanut | 1–50 | y = 32247x + 2177.6 | 0.9977 | 0.926 | 5 | |
| Oxyfluorfen | Solvent | 1–50 | y = 759.3x + 2148.2 | 0.9958 | - | |
| Peanut | 1–50 | y = 714.71x + 2303.7 | 0.9911 | 0.949 | 10 | |
| Imazethapyr | Solvent | 1–50 | y = 4649.6x + 167.95 | 0.9977 | - | |
| Peanut | 1–50 | y = 4746.8x - 395.85 | 0.9996 | 1.02 | 5 | |
| Quizalofop-p-ethyl | Solvent | 1–50 | y = 90835x + 53824 | 0.9996 | - | |
| Peanut | 1–50 | y = 79496x +121863 | 0.9967 | 0.875 | 5 |