Table 3.
Recoveries (n = 5) and RSDs obtained from 8 OCPs spiked in spinach, cabbage, oilseed rape, and lettuce at three levels.
| Compounds | Spiked (μg/kg) | Spinach | Cabbage | Oilseed rape | Lettuce | ||||
|---|---|---|---|---|---|---|---|---|---|
| Recovery (%) | RSD (%) | Recovery (%) | RSD (%) | Recovery (%) | RSD (%) | Recovery (%) | RSD (%) | ||
| α-HCH | 2 | 88.7 | 3.1 | 98.7 | 3.5 | 89.3 | 1.2 | 84.4 | 6.4 |
| 20 | 101.2 | 3.2 | 98.0 | 5.5 | 85.1 | 2.7 | 88.3 | 5.4 | |
| 40 | 92.0 | 4.5 | 103.2 | 4.3 | 78.6 | 3.8 | 80.1 | 4.7 | |
|
| |||||||||
| β-HCH | 2 | 106.5 | 6.6 | 104.7 | 7.0 | 95.5 | 7.4 | 98.5 | 2.9 |
| 20 | 89.0 | 4.3 | 92.3 | 5.4 | 91.6 | 2.7 | 96.3 | 5.8 | |
| 40 | 103.1 | 7.2 | 89.9 | 4.9 | 88.5 | 5.1 | 102.0 | 5.3 | |
|
| |||||||||
| γ-HCH | 2 | 92.3 | 3.8 | 97.1 | 2.1 | 94.7 | 1.6 | 101.4 | 1.8 |
| 20 | 88.9 | 4.9 | 98.4 | 1.7 | 104.3 | 3.7 | 103.2 | 1.1 | |
| 40 | 97.2 | 3.3 | 101.3 | 2.8 | 96.6 | 4.1 | 94.7 | 4.2 | |
|
| |||||||||
| δ-HCH | 2 | 99.9 | 2.4 | 95.4 | 2.5 | 95.6 | 7.3 | 85.5 | 5.1 |
| 20 | 96.5 | 3.5 | 100.2 | 5.7 | 90.2 | 5.7 | 80.6 | 3.6 | |
| 40 | 107.7 | 4.7 | 105.7 | 6.0 | 102.9 | 4.2 | 79.0 | 4.6 | |
|
| |||||||||
| p,p′-DDE | 2 | 102.4 | 4.6 | 88.6 | 3.7 | 106.5 | 3.6 | 100.8 | 1.8 |
| 20 | 105.3 | 6.7 | 87.1 | 2.2 | 96.6 | 2.0 | 102.6 | 2.6 | |
| 40 | 97.0 | 5.9 | 90.5 | 4.3 | 90.8 | 2.1 | 91.7 | 3.7 | |
|
| |||||||||
| p,p′-DDD | 2 | 96.0 | 6.8 | 91.6 | 3.7 | 89.3 | 5.6 | 95.6 | 7.5 |
| 20 | 92.7 | 4.5 | 92.3 | 2.1 | 85.4 | 4.8 | 95.2 | 5.4 | |
| 40 | 95.5 | 7.5 | 82.0 | 3.2 | 98.5 | 1.7 | 102.3 | 4.6 | |
|
| |||||||||
| o,p′-DDT | 2 | 87.2 | 4.5 | 84.2 | 2.4 | 89.9 | 2.2 | 94.8 | 1.6 |
| 20 | 98.3 | 3.2 | 88.9 | 1.6 | 96.6 | 1.5 | 104.7 | 3.2 | |
| 40 | 96.8 | 2.4 | 90.8 | 3.1 | 102.1 | 3.4 | 89.3 | 3.1 | |
|
| |||||||||
| p,p′-DDT | 2 | 87.3 | 1.6 | 78.7 | 2.9 | 95.0 | 2.5 | 87.0 | 2.4 |
| 20 | 85.5 | 2.5 | 80.6 | 3.5 | 91.5 | 1.4 | 96.3 | 4.5 | |
| 40 | 95.1 | 5.3 | 85.0 | 4.7 | 92.3 | 4.0 | 92.5 | 2.5 | |