表 5.
唑虫酯及氧化产物异构体在小白菜中的加标回收率
| Analyte | Spiked level/ (μg/kg) |
Intra-day (n=3) | Inter-day RSD/% (n=9) |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Day 1 | Day 2 | Day 3 | ||||||||
| Recovery/% | RSD/% | Recovery/% | RSD/% | Recovery/% | RSD/% | |||||
| RS-Pyr | 0.25 | 108.1 | 8.3 | 99.4 | 4.7 | 109.8 | 2.1 | 5.3 | ||
| 5 | 108.8 | 3.3 | 106.4 | 1.1 | 109.6 | 0.9 | 1.5 | |||
| 100 | 108.6 | 2.8 | 102.5 | 2.0 | 97.3 | 3.9 | 5.5 | |||
| SS-Pyr | 0.25 | 106.4 | 5.0 | 103.2 | 7.8 | 98.7 | 2.4 | 3.8 | ||
| 5 | 101.5 | 3.4 | 106.1 | 0.7 | 99.6 | 2.6 | 3.3 | |||
| 100 | 103.5 | 2.6 | 98.6 | 1.9 | 93.1 | 7.7 | 5.3 | |||
| RR-Pyr | 0.25 | 97.0 | 7.1 | 97.2 | 6.1 | 102.7 | 3.6 | 3.3 | ||
| 5 | 105.0 | 7.4 | 110.3 | 2.0 | 110.6 | 1.3 | 2.9 | |||
| 100 | 105.0 | 2.1 | 100.4 | 1.2 | 96.6 | 7.8 | 4.2 | |||
| SR-Pyr | 0.25 | 97.1 | 7.7 | 106.8 | 2.2 | 104.7 | 3.1 | 4.9 | ||
| 5 | 105.8 | 7.1 | 109.6 | 1.4 | 107.1 | 0.6 | 1.8 | |||
| 100 | 106.9 | 1.9 | 107.0 | 4.5 | 103.6 | 6.2 | 1.8 | |||
| S-(Pyr+O) | 0.5 | 94.9 | 4.4 | 82.5 | 7.9 | 85.0 | 3.4 | 7.5 | ||
| 10 | 88.0 | 5.1 | 86.9 | 2.5 | 88.8 | 1.9 | 1.1 | |||
| 200 | 88.7 | 0.8 | 81.2 | 1.9 | 87.9 | 5.1 | 4.8 | |||
| R-(Pyr+O) | 0.5 | 100.1 | 2.6 | 88.5 | 3.3 | 87.5 | 3.1 | 7.6 | ||
| 10 | 90.1 | 5.4 | 85.7 | 1.4 | 88.0 | 1.1 | 2.5 | |||
| 200 | 90.9 | 1.0 | 87.0 | 2.0 | 92.0 | 5.7 | 2.9 | |||