Dispelling dynamic of pirimicarb residue in the cucumber fruits and soil
2005
Yan Yajie, Duan Yuhong, Yang Liping
chinois. 将抗蚜威按90~150 g/hm2商品推荐使用剂量进行田间试验,应用气相色谱法进行残留量分析检测。结果表明:抗蚜威在黄瓜及土壤中消失率分别在施药6 d和7 d后达到90%以上,其消解动态方程分别为Ct=1.184 5e-0.339 5t、Ct=5.257 5e-0.390 5t,半衰期为1.7~2.0 d。抗蚜威在黄瓜及土壤中的残留量随着时间延长而递减,符合一级反应动力学方程。
Afficher plus [+] Moins [-]anglais. The field experiment of pirimicarb efficacy was carried out according to the recommendation working weight,90 ～ 150 g/hm~(2),and the gas-chromatograph was used to test its residual contents.The results showed that the elimination coefficient of pirimicarb in the cucumber fruits and soil was above(90%) after drugging delivery in 6 days and 7 days.The despelling degradation dynamic equation was as C_(t)=(1.184_5e~(-0.339_5t))and C_(t)=5.257_5e~(-0.390_5t) respectively.Its half-life period ranged from 1.7 to 2.0 days. As time went on, the residual contents of pirimicarb in the cucumber fruits and soil decreased, which accorded with the first-order kinetics equation.
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