毒死蜱在豆角、辣椒和土壤中的残留动态  

The Residue Dynamic of Chlorpyrifos in Carob, Chili and Soil

作　　者：吴华[1] 李冰清[1] 林琼芳[1] 黄鸿[1] 欧剑峰[1] 刘桂清[1] 

机构地区：[1]广东省昆虫研究所广东省野生动物保护和利用公共实验室,广州510260

出　　处：《农药》2007年第11期767-769,778,共4页Agrochemicals

摘　　要：采用GC测定方法,对毒死蜱在广州和海口两地的豆角、辣椒及土壤中的残留动态进行了评价。两年的试验结果表明,毒死蜱在广州豆角中的半衰期为4.30d,在豆角土壤中的半衰期为6.02d,在辣椒中的半衰期为3.99d,在辣椒土壤中的半衰期为7.21d;毒死蜱在海口豆角中的半衰期为4.45d,在豆角土壤中的半衰期为6.34d,在辣椒中的半衰期为4.78d,在辣椒土壤中的半衰期为8.21d。毒死蜱在正常使用剂量下,有效成分在两地豆角、辣椒和土壤中的最终残留量均低于0.5mg/kg。A field experiment was conducted and analyzed the residue dynamic of chlorpyrifos in carob, chili and soil was analyzed by GC in Guangzhou and Haikou. The results showed that the half-life of degradation for chlorpyrifos was 4.30 d in carob, 6.02 d in carob＇s soil, 3.99 d in chili, 7.21 d in chili＇s soil in Guangzhou. While the half-life of degradation in Haikou was 4.45 d in carob, 6.34 d in carob＇s soil, 4.78 d in chili, 8.21 d in chili＇s soil. The final residue of chlorpyrifos in carob, chili and soil was less than 0.5 mg/kg respectively under the common dosage.

关 键 词：毒死蜱 豆角 辣椒 残留 消解 半衰期 

分 类 号：X592[环境科学与工程—环境工程]