表 1方法回收率偏差范围
浓度水平范围(p) | 允许偏差范围 |
10%≤p<100% | 95%~102% |
1%≤p<10% | 92%~105% |
0.1%≤p<1% | 90%~108% |
0.01%≤p<0.1% | 85%~110% |
10mg/kg≤p<0.01% | 80%~115% |
1mg/kg≤p<10mg/kg | 75%~120% |
0.1mg/kg≤p<1mg/kg | 80%~110% |
p<0.1 mg/kg | 60%~120% |