阿维菌素、毒死蜱在蜜柚中的残留动态及套袋对残留的影响  

ResidualDecline of Abamectin and Chlorpyrifos in Honey Pomelo and Bagging Effect on Residues

作　　者：胡彧娴[1] Hu Yuxian(Zhangzhou Agricultural Test and Inspection Centre,Zhangzhou Fujian 363000,China)

机构地区：[1]漳州市农业检验监测中心,福建漳州363000

出　　处：《农药科学与管理》2020年第11期37-42,共6页Pesticide Science and Administration

基　　金：2018年漳州市自然科学基金项目“琯溪蜜柚中多残留QuEChERS HPLC-MS/MS检测方法的建立及套袋控残技术研究”(ZZ2018J30)。

摘　　要：为了明晰阿维菌素和毒死蜱在蜜柚上使用的安全性,采用高效液相色谱-串联质谱法及田间试验方法,研究了2种农药在蜜柚上残留降解动态以及套袋对残留量的影响。结果表明,阿维菌素和毒死蜱在蜜柚上的残留降解动态均符合一级动力学方程,阿维菌素套袋处理的半衰期(T 1/2)为3.61~4.00d,不套袋处理的T 1/2为3.26~3.53d;毒死蜱套袋处理的T 1/2为4.55~4.84d,不套袋处理的T 1/2为4.35~4.45d。2种农药套袋处理的半衰期均略长于不套袋处理的半衰期。施药后65d在蜜柚上没有检出阿维菌素和毒死蜱残留。To evaluate the safety of abamectin and chlorpyrifos in honey pomelo,the residual degradation dynamics of two pesticides and the effect of bagging on residues were investigated by high performance liquid chromatography-tandem mass spectrometry and field trials.The results showed that the residual degradation dynamics of abamectin and chlorpyrifos followed the first-order kinetic equation,and the half-life(T 1/2)of abamectin was 3.61~4.00d in bagging treatment,and 3.26~3.53d in no-bagging.T 1/2 of chlorpyrifos was 4.55~4.84d in bagging treatment,and 4.35~4.45d in no-bagging.T 1/2 of two pesticides were a little longer in bagging treatment.The residues of abamectin and chlorpyrifos in honey pomelo were not detected on the 65th day after spraying.

关 键 词：阿维菌素 毒死蜱 蜜柚 套袋 残留 

分 类 号：S482.3[农业科学—农药学] S482.5[农业科学—植物保护]