Table 4.
Recovery and relative standard deviation (RSD) of the pesticides obtained from GC-MS analysis of tea samples at 3 spiking levels (n = 3).
| Compound | Recovery% Spiked 10 (μg/kg) | RSD | Recovery %Spiked 100 (μg/kg) | RSD |
|---|---|---|---|---|
| Pirimiphos- methyl | 94 | 2.10 | 90 | 4.42 |
| Fenitrothion | 82 | 8.05 | 98 | 1.16 |
| Malathion | 84 | 4.03 | 97 | 1.18 |
| Chloropyrifos | 89 | 3.32 | 88 | 2.46 |
| Endosulfan | 106 | 2.18 | 72 | 1.04 |
| Ethion | 84 | 1.95 | 95 | 2.81 |
| 4,4, DDE | 97 | 3.28 | 100 | 1.00 |
| Deldrin | 91 | 1.78 | 93 | 2.29 |
| Triazophos | 92 | 4.61 | 87 | 2.03 |
| 4,4, DDT | 94 | 2.99 | 95 | 2.29 |
| Deltametrin | 104 | 2.44 | 99 | 3.58 |
| Bifenthrin | 98 | 3.73 | 87 | 6.23 |
| Lambda-Cyhlaothrin | 74 | 2.02 | 96 | 1.55 |