摘要
本文建立了水稻样品中吡蚜酮的LC-MS/MS检测方法,同时2019年进行了背负式喷雾器和植保无人机施用吡蚜酮农药试验,对两种器械施药方式下吡蚜酮在水稻样品中的残留量进行了比较。结果表明,吡蚜酮在稻谷和植株空白样品添加的平均回收率在72%~104%之间,相对标准偏差在4%~11%之间,稻谷和植株中的定量限分别为0.01和0.02mg/kg。在同一用量下,在施药后2h和14d,稻谷和植株中吡蚜酮残留量表现为:植保无人机>人工背负式喷雾器。因此在采用植保无人机施药防治病虫害时,需关注农产品中残留量的变化。
The method for determination of the sample of pymetrozine in rice was established.The residues test of pymetrozine which sprayed by plant protection drone and knapsack sprayer were carried out in 2019 and the residues of pymetrozine in unhusked rice and straw under Two different application instruments were compared.The results showed that the recoveries spiked in blank unhusked rice and straw were ranged from 72%~104%with relative standard deviations(RSDs)of 4%~11%.The limits of quantification(LOQs)of pymetrozine in unhusked rice and straw were 0.01 mg/kg and 0.02 mg/kg respectively.At the same dosage,the residue of pymetrozine in unhusked rice and straw which Sprayed by plant protection drone were higher than sprayed by knapsack sprayer.Therefore,we should pay attention to pesticides residues in agricultural products when using plant protection drone to control pests and diseases.
作者
刘春来
聂思桥
刘照清
傅强
付启明
孙炯
Liu Chunlai;Liu Zhaoqing;Nie Siqiao;Fu Qiang;Fu Qiming;Sun Jiong(Pesticide Inspection Institute of Hunan,Changsha Hunan 410005,China;Hunan Winp Analytical Technology Research Co.,Ltd,Changsha Hunan 410137,China)
出处
《农药科学与管理》
CAS
2020年第2期25-30,共6页
Pesticide Science and Administration
基金
湖南省农药监管专项项目
关键词
吡蚜酮
植保无人机
水稻
残留
pymetrozine
plant protection drone
rice
residue
