为研究乙酰甲胺磷在蔬菜上使用后产生的农药残留风险，以不同制剂、不同浓度的乙酰甲胺磷为试验材料，分析乙酰甲胺磷及其代谢产物在小白菜中的消解动态变化，结果表明：（1）乙酰甲胺磷代谢产生甲胺磷，代谢率与农药的剂型有关；（2）不同制剂的乙酰甲胺磷在小白菜中的半衰期基本一致，在26.8~28.5 h之间，而代谢物甲胺磷的半衰期略有差异，在36.7~42.3 h之间；（3）乙酰甲胺磷在叶菜中使用会产生较高的甲胺磷残留风险，且安全间隔期在12天以上。

The results of dunamics about Acephate of different formulations showed:(1) Acephate could metabolize to Methamidophos and metabolic rate was affected by different formulations;(2) the half-life of Acephate in cabbages was 1.12~1.19 days,and the half-life of Methamidophos in cabbages was 1.53~1.76 days;(3) Acephate had higher Methamidophos residue risk in the crops,and the safe interval of acephate should be extended to 11days.