| Analytes | Concentration | Inter-day (n = 6) | Intra-day (n = 6) | ||
| Recovery (%) | RSD (%) | Recovery (%) | RSD (%) | ||
| Butachlor | 25 | 90.65 | 8.098 | 87.70 | 8.266 |
|
| 50 | 96.70 | 6.594 | 97.47 | 4.601 |
| Chlorpyrifos | 25 | 83.06 | 10.06 | 85.59 | 10.206 |
|
| 50 | 99.60 | 4.833 | 99.81 | 5.523 |