一、毒性研究1.急性毒性试验: 用Wistar大鼠,按流动平均数法测得98％乙酰甲胺磷经口LD_(50)为825mg/kg(雌雄混合),雄鼠经皮LD_(50)为4,640mg/kg,65％原粉对雄或雌大鼠经口LD_(50)均为1,470mg/kg。根据三部会议对农药急性毒性的分级标准,乙酞甲胺磷属低毒类。从有效成分65％的乙酞甲胺磷LD_(50)比较,说明工业品中杂质的急性毒性低于乙酞甲胺磷本身,与国外报道一致。 First, the toxicity of 1 acute toxicity test: Wistar rats, according to the flow-average method measured 98% acephate oral LD_ (50) 825mg / kg (male and female mixed), male mouse percutaneous LD_ (50 ) Was 4,640 mg / kg, and 65% of the original powder was 1,470 mg / kg for both male and female rats. According to the three conferences on the acute toxicity of pesticides grading standards, acetaminophen is a low-toxic phosphorus. From the active ingredient 65% of acephate Methamidophos LD_ (50) comparison shows that the acute toxicity of industrial impurities lower than ethamethamine itself, with foreign reports.