水胺硫磷在白菜上的残留动态

本文报道了水胺硫磷农药在白菜上的残留动态，根据田间试验数据推导出该农药消解过程中的数学模式，该模式表明水胺硫磷在白菜上存在两个速率不同的消解阶段，白菜中水胺硫磷残留量与喷药量和喷后间隔期有密切关系，本研究采用气相色谱法测定水胺硫磷农药残留，方法灵敏度为0．015ppm，添加回收率大于90％。

Behaviour of Isocarbophos on Chinese Cabbage

This paper described the residual behaviour of pesticide isocarbophos on chinese cabbage;It deduced a mathernatical model of the disappearance process of isocarbophosfrom the data generated by field tests. This model indicatedthat isocarbophos had two degradation steps with differentrates on cabbage.The residual quantity had close relationshipWithdosage of isocarbophos and interval period after spray-itg.Isocarbophos resdual was determined by Gas Chromatog-raphy.The sensitivity was 0.015ppm,the fortification recov-eries were greater than 90%.