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The analytical performance of MSPE-LC-MS method for determination of OPPs.
| OPPs | Regression equation | R2 | Linear range (μg/L) | LOD (μg/L) | LOQ (μg/L) | RSD (%, n=5) | EF |
|---|---|---|---|---|---|---|---|
| Azinphos methyl | y = 2864.6x + 14251 | 0.9977 | 10-200 | 0.004 | 0.013 | 5.7 | 721 |
| Chlorpyrifos | y = 488.28x + 870.33 | 0.9976 | 10-200 | 0.026 | 0.085 | 3.6 | 541 |
| Malathion | y = 2203x - 1349 | 0.9971 | 10-200 | 0.006 | 0.021 | 5.1 | 394 |
| Parathion | y = 113.78x + 85.255 | 0.9955 | 10-200 | 0.150 | 0.499 | 4.3 | 431 |
