【摘要】 通过质谱条件的优化,确定苹果果实中68种拟除虫菊酯类农药残留的提取和分析方法为GCNCI-MS。在此方法下,68种农药的检出限低于6μg/kg;在0.01、0.10、0.50 mg/kg 3个加标水平下,样品的平均回收率为81%~114%,相对标准偏差为1.6%~15.3%。表明该方法可用于苹果果实中68种拟除虫菊酯类农药的测定。更多还原

【Abstract】 The method for simultaneous determination of 68 pyrethroid residues in apple was developed as GC-NCI-MS through optimizing mass spectrometry conditions. By this method,the detection limit of 68 pyrethroids was less than 6 μg / kg; the average recovery ranged from 81% to 114% with the relative standard deviations( RSD) as 1. 6% ~ 15. 3% at three adding levels( 0. 01,0. 10,0. 50 mg / kg). The results showed that this method was suitable for simultaneous detection of the 68 pyrethroid residues in apple.更多还原