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.
作者
胡彧娴
Hu Yuxian(Zhangzhou Agricultural Test and Inspection Centre,Zhangzhou Fujian 363000,China)
出处
《农药科学与管理》
CAS
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)。
关键词
阿维菌素
毒死蜱
蜜柚
套袋
残留
abamectin
chlorpyrifos
honey pomelo
bagging
residue
作者简介
胡彧娴,女,硕士研究生,农艺师,主要从事农产品质量安全检测。联系电话:0596-2606657,E-mail:532402132@qq.com。
