Table 1.
Physicochemical properties and MRLs of the selected pesticides
| No. Compound | Structural group | M.F. | M.W. | MRL (ppm) |
|---|---|---|---|---|
| 1 Dichlorvos | Organophosphorus | C4H7Cl2O4P | 220.98 | ----- |
| 2 Diazinon | Organophosphorus | C12H21N2O3PS | 304.35 | 0.20 |
| 3 Carbaryl | Carbamate | C12H11NO2 | 201.22 | 1.00 |
| 4 Fenitrothion | Organophosphorus | C9H12NO5PS | 277.2 | 1.00 |
| 5 Fipronil | Phenylprazole | C12H4Cl2F6N4OS | 437.2 | 0.01 |
| 6 Malathion | Organophosphorus | C10H19O6PS2 | 330.36 | ----- |
| 7 Oxadiazon | Oxadiazole | C15H18Cl2N2O3 | 345.22 | 0.02 |
| 8 Primicarb | Carbamate | C11H18N4O2 | 238.00 | ------ |
| 9 *Chlorpyrifos | Organophosphorus | C9H11Cl3NO3PS | 350.59 | 0.50 |
| 10 *Chlorpyrifos-methyl | Organophosphorus | C7H7Cl3NO3PS | 322.5 | 0.10 |
| 11 Fenthion | Organophosphorus | C10H15O3PS2 | 278.33 | 0.05 |
| 12 Propiconazole | Triazole | C15H17Cl2N3O2 | 342.00 | 0.05 |
| 13 Propargite | Sulfite ester | C19H26O4S | 350.00 | ----- |
| 14 Edifenphos | Organophosphorus | C14H15O2PS2 | 310.4 | 0.10 |
| 15 Fenvalerate | Pyrethroid | C25H22ClNO3 | 419.92 | ----- |
| 16 Pirimiphos-methyl | Organophosphorus | C11H20N3O3PS | 305.00 | 1.00 |
| 17 Iprodione | Dicarboximide | C13H13CL2N3O3 | 330.17 | ** 10.00 |