咪鲜胺在水稻田中的残留及消解动态研究  

Residues and Dissipation Dynamics of Prochloraz in Rice Field

作　　者：杨洋[1] 刘一平[1,2] 肖璐璐 王昱翔 王娅[1] 刘洪斌[2] 刘畅 李晓刚 Yang Yang;Liu Yiping;Xiao Lulu;Wang Yuxiang;Wang Ya;Liu Hongbin;Liu Chang;Li Xiaogang(College of Plant Protection,Hunan Agricultural University,Changsha410128;Hunan Institute for the Control of Agrochemicals,Changsha410005,China)

机构地区：[1]湖南农业大学植保学院,湖南长沙410128 [2]湖南省农药检定所,湖南长沙410005

出　　处：《广东化工》2018年第22期4-5,共2页Guangdong Chemical Industry

基　　金：国家重点研发计划:化肥农药减施增效的环境效应评价(2016YFD0201200);湖南省研究生科研创新项(CX2017B351)

摘　　要：采用(GC-ECD测定了咪鲜胺在田水、土壤和水稻植株样品中的消解动态。土壤、水稻植株样品用丙酮提取,提取液经衍生净化、GC-ECD检测。当咪鲜胺在土壤、田水和植株中的添加浓度为0.05～5.0 mg/kg时,其回收率为83.1%～98.7%之间,RSD为2.6%～6.1%;咪鲜胺的LOD为2.0×10^(-11) g,在田水、土壤、水稻植株中的LOQ为0.05 mg/kg。消解动态试验结果显示,咪鲜胺在植株、土壤以及田水中的消解动态规律符合一级动力学方程,半衰期为3.5～9.5 d。The residual dynamics and final residues of prochloraz in paddy water,soil,plant,samples in supervised field residue trials were determined by GC-ECD.Soil,plant samples were extracted with acetone.The extracts were derivation,cleaned up and determined by GC-ECD.Under the fortified level from 0.05 to 5.0 mg/kg for soil,plant,the recovery ranged from 83.1 % to 98.7 % with the relative standard deviations of 2.6 %-6.1 %.The LOD was 2.0×10^-11 g,and the LOQ of the method was 0.05 mg/L for all samples.The results of dissipation dynamic test showed that the rules consistent with first order kinetics equation,and the half-life of prochloraz was 3.5~9.5 days.

关 键 词：咪鲜胺 水稻 残留 消解动态 

分 类 号：TQ[化学工程]