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Position: Home > Articles > Determination and Risk Assessment of Acifluorfen-sodium Residues in Peanut by HPLS-MS/MS Pesticide Science and Administration 2017 (8) 25-30

高效液相色谱串联质谱对花生中三氟羧草醚的残留检测与风险评估

作  者:
徐金丽;尤祥伟;陈丹;郑晓;徐光军;王秀国
单  位:
中国农业科学院烟草研究所国家烟草专卖局病虫害监控与综合治理重点实验室
关键词:
高效液相色谱-串联质谱;花生;三氟羧草醚;残留检测;风险评估
摘  要:
建立了高效液相色谱-串联质谱法测定三氟羧草醚在花生中农药残留的检测方法,并利用GAP试验样品进行了消解动态研究和最终残留的风险评估。样品经过乙腈/浓盐酸(V:V,98:2)提取,分散固相萃取净化,高效液相色谱串联质谱仪检测。两年三地试验结果表明:三氟羧草醚在花生植株中的消解较快,半衰期为1.1~2.4d;土壤中的半衰期14.4~25.7d。按990ga.i/hm~2和1 485ga.i/hm~2剂量分别施药1次,为杂草定向喷雾,施药后于花生收获前20d、收获期分别采样,三氟羧草醚在花生上最终残留量均<0.1mg/kg。
译  名:
Determination and Risk Assessment of Acifluorfen-sodium Residues in Peanut by HPLS-MS/MS
作  者:
Xu Jinli;You Xiangwei;Chen Dan;Zheng Xiao;Xu Guangjun;Wang Xiuguo;Tobacco Research Institute of CAAS,Key Laboratory of Tobacco Pest Monitoring Controlling&Integrated Management;
关键词:
HPLC~MS/MS;;peanut;;acifluorfen-sodium;;residue determination;;risk assessment
摘  要:
A high performance liquid chromatography tandem mass spectrometry( HPLC-MS/MS) method was developed for the determination of the degradation dynamics and final residue of acifluorfen-sodium. Samples collected from the GAP field trials were extracted by acetonitrile/concentrated hydrochloric acid, extracted and purified by dispersive solid phase and detected by HPLC-MS/MS. The results showed that acifluorfen-sodium in pe.anut plants went through a rapid digestion with the half life of 1. 1~2. 4 d in peanut leaf and 14. 4~25. 7d in soil. According to the recommended application rate, the residue of acifluorfen-sodium in peanut was found to be less than 0. 1 mg/kg.

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