探索者
化学
气相色谱-质谱法
农药残留
杀虫剂
色谱法
萃取(化学)
环境化学
残留物(化学)
降级(电信)
质谱法
气相色谱法
作者
Huijun Liu,Baoyuan Guo,Huili Wang,Jianzhong Li,L. Zheng
标识
DOI:10.1007/s00128-014-1224-7
摘要
The dissipation and residues of bromothalonil in apple and soil under field condition were analyzed by QuEChERS (quick, easy, cheap, effective, rugged and safe) combined with gas chromatography–mass spectrometer method. The recoveries were ranged from 80.8 % to 106 % with coefficient variation for repeatability ranged from 3.08 % to 7.09 % at fortification levels of 0.02, 0.04 and 0.2 mg/kg in apple and soil. The limit of quantification of the method was 0.31 μg/kg. The dissipation rates of bromothalonil followed the first-order kinetics and the half-lives were from 3.61 to 3.98 days in apple and from 4.65 to 9.29 days in soil. In apple, the terminal residues of bromothalonil were below the China maximum residue limit (0.2 mg/kg) after 7 days of application. This work contributed to provide the basic information for a safe usage of bromothalonil in apple orchard and preventing health problem from consumers in China.
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