Table 1 Comparison of matrix-matched calibration and solvent calibration.
Compound | Matrix | Concentration (mg L−1) | Regression equation | R2 | Slope of matrix/slope of solvent | LOD (mg kg−1) | LOQ (mg kg−1) |
|---|---|---|---|---|---|---|---|
beta-cypermethrin | solvent | 0.01–5 | y = 8182.3x + 27.492 | 0.999 | 0.976 | 0.0016200 | 0.0054100 |
soil | 0.01–5 | y = 7984.9x + 19.872 | 1.000 | ||||
pyriproxyfen | solvent | 0.0005–5 | y = 592254x + 57760 | 0.998 | 0.871 | 0.0000909 | 0.0003030 |
soil | 0.0005–5 | y = 516082x + 32869 | 0.998 | ||||
abamectin | solvent | 0.001–5 | y = 32915x + 49.149 | 0.999 | 0.689 | 0.0001900 | 0.0006330 |
soil | 0.001–5 | y = 22689x − 90.948 | 0.999 | ||||
diflubenzuron | solvent | 0.001–5 | y = 17032x + 404.55 | 0.999 | 0.888 | 0.0001650 | 0.0005500 |
soil | 0.001–5 | y = 15125x − 338.61 | 0.999 | ||||
chlorothalonil | solvent | 0.01–5 | y = 14424x − 187.86 | 0.999 | 0.999 | 0.0019100 | 0.0063700 |
soil | 0.01–5 | y = 14417x − 213.66 | 0.999 |