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.
出处
《农药》
CAS
北大核心
2007年第11期767-769,778,共4页
Agrochemicals
关键词
毒死蜱
豆角
辣椒
残留
消解
半衰期
chlorpyrifos
carob
chili
residue
degradation
half-life
作者简介
吴华（1974-），男，工程师，从事药物合成、分析及应用研究。Tel：020．84199386，E-mail：wu7478@163．com。
