氟环唑30%悬浮剂在葡萄和土壤中的残留动态研究  

Study on the Residue Dynamics of Epoxiconazole 30% SC in Grape and Soil

作　　者：兰腾芳[1] 郑尊涛[2] 李俊凯[1] 陈立[3] 方祖凯[1] 杜铁钢[1] 

机构地区：[1]长江大学农学院,湖北荆州434025 [2]农业部农药检定所,北京100125 [3]中国科学院动物研究所,北京100101

出　　处：《湖北农业科学》2012年第20期4613-4615,共3页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(30971948)

摘　　要：分析了氟环唑(Epoxiconazole)30%悬浮剂在不同地区葡萄中的残留消解动态以及收获期葡萄中的最终残留量,为制定氟环唑在葡萄上合理使用提供科学依据。建立了乙酸乙酯或乙腈超声提取,经弗罗里硅土柱净化,采用反相高效液相色谱法分析氟环唑残留的方法。该悬浮剂在葡萄和土壤中的半衰期分别为15.9～17.2 d和21.2～32.5 d;在最后一次施药后30 d和40 d时葡萄中的残留量为0.05～0.33 mg/kg。结果表明,按推荐剂量施药,每季最多使用3次,距最后一次施药30 d时葡萄中的残留量低于0.5 mg/kg,推荐氟环唑在葡萄上的最高残留限量为0.5 mg/kg。The residue dynamics of epoxiconazole 30% SC in grape and soil at different area were analyzed to provide guideline for safety application of epoxiconazole in grape.The residue in grape and soil samples was extracted by ethyl estate or acetonitrile,and purified with florisil column and determined by RP-HPCC.The half-life of degradation of epoxiconazole 30% SC was 15.9～17.2 d in grape,and 21.2～32.5 d in soil,respectively.The final residue in grape samples was 0.05～0.33 mg / kg 30 d or 40 d after the last spraying.The results indicated that 3 times of spraying in one season at the recommended dose and the last spraying interval 30 d,the residue measured was lower than 0.5 mg / kg.As a result,the maximum residue limit on grape was recommended as 0.5 mg / kg.

关 键 词：氟环唑(Epoxiconazole) 消解动态 葡萄 土壤 

分 类 号：S482.2[农业科学—农药学] O657.7[农业科学—植物保护]