联苯肼酯在柑橘和土壤中的残留动态研究  

Dynamic Analysis of Bifenazate Residue in Citrus and Soil

作　　者：戴魏[1,2] 李晓刚[1] 陈力华[2,3] 聂思桥[2,3] 梁骥[2,3] 任竞[2,3] 喻湘林[1] 朱锐[1] 

机构地区：[1]湖南农业大学生物安全科学技术学院,湖南长沙410128 [2]湖南化工研究院国家农药创制工程技术研究中心,湖南长沙410014 [3]农用化学品湖南省重点实验室,湖南长沙410014

出　　处：《精细化工中间体》2013年第2期69-72,共4页Fine Chemical Intermediates

摘　　要：研究了联苯肼酯在柑橘和土壤中的残留与降解动态,两年（2011~2012）三地（湖南、浙江、广西）残留实验初步得出原始沉积量（药后2 h）和降解半衰期分别为0.113~0.887 mg/kg和0.23~1.54 D。尽管联苯肼酯在柑橘中的降解比在土壤中慢,但联苯肼酯属于低残留、易降解农药。A field experiment was conducted in three provinces to reveal the dissipation rate and the residue of bifenazate in citrus and soil.The bifenazate was analyzed with HPLC-DAD.The average recoveries of bifenazate were 80.47%~ 97.86% in citrus and 86.29%~98.93% in soil with relative standard deviations of 2.62%~7.32% and 4.85%~6.89%,respectively.Bifenazate degraded more rapidly in soil than in citrus.The half-lives in citrus and in soil were 1.91 ~3.05 d and 0.73 ~1.54 d,respectively.These results suggested that bifenazate is a kind of low residual and easily dissipated fungicide.

关 键 词：高效液相色谱 联苯肼酯 残留分析 动态降解 

分 类 号：O657.72[理学—分析化学]