Table 5.
Distribution of recovery ranges at fortification levels of 10 and 100 µg/kg for 504 pesticide multiresidues in representative crops.
| Recovery (%) |
RSD 1 (%) |
Number of Pesticides (Percentage) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Potato | Cabbage | Mandarin | Brown Rice | Soybean | |||||||
| 10 μg/kg | 100 μg/kg | 10 μg/kg | 100 μg/kg | 10 μg/kg | 100 μg/kg | 10 μg/kg | 100 μg/kg | 10 μg/kg | 100 μg/kg | ||
| N.D. 2 | 17 (3.4%) | 0 (0.0%) | 10 (2.0%) | 0 (0.0%) | 22 (4.4%) | 0 (0.0%) | 13 (2.6%) | 0 (0.0%) | 20 (4.0%) | 0 (0.0%) | |
| <30 | all | 7 (1.4%) | 9 (1.8%) | 11 (2.2%) | 6 (1.2%) | 6 (1.2%) | 9 (1.8%) | 10 (2.0%) | 9 (1.8%) | 11 (2.2%) | 15 (3.0%) |
| 30–70 | ≤20 | 8 (1.6%) | 7 (1.4%) | 17 (3.4%) | 2 (0.4%) | 22 (4.4%) | 18 (3.6%) | 9 (1.8%) | 13 (2.6%) | 74 (14.7%) | 41 (8.1%) |
| >20 | 14 (2.8%) | 11 (2.2%) | 1 (0.2%) | 19 (3.8%) | 1 (0.2%) | 1 (0.2%) | 9 (1.8%) | 6 (1.2%) | 1 (0.2%) | 12 (2.4%) | |
| 70–120 | ≤20 | 437 (86.7%) | 475 (94.2%) | 457 (90.7%) | 456 (90.5%) | 449 (89.1%) | 476 (94.4%) | 453 (89.9%) | 475 (94.2%) | 394 (78.2%) | 434 (86.1%) |
| >20 | 14 (2.8%) | 2 (0.4%) | 1 (0.2%) | 21 (4.2%) | 4 (0.8%) | 0 (0.0%) | 6 (1.2%) | 1 (0.2%) | 0 (0.0%) | 2 (0.4%) | |
| 120–140 | ≤20 | 7 (1.4%) | 0 (0.0%) | 7 (1.4%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 4 (0.8%) | 0 (0.0%) | 4 (0.8%) | 0 (0.0%) |
| Sum | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | 504 (100%) | |
1 Relative standard deviation. 2 Not detectable.