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Recovery Tests of Chlorpyrifos Spiked in Water, Astragalus, and Poria cocos (n = 3)
| sample |
water |
Astragalus
|
Poria cocos
|
||||||
|---|---|---|---|---|---|---|---|---|---|
| added (ng/mL) | 1.0 | 5.0 | 25 | 1.0 | 5.0 | 25 | 1.0 | 5.0 | 25 |
| found (ng/mL) | 1.0 | 5.8 | 23.9 | 1.1 | 5.7 | 25.8 | 0.9 | 6.0 | 27.9 |
| RSD (%) | 5.0 | 8.7 | 2.6 | 5.7 | 3.8 | 5.8 | 5.4 | 6.6 | 6.5 |
| recovery (%) | 100 | 116 | 95.6 | 110 | 114 | 103 | 90 | 120 | 112 |
