【摘要】 对国内外文献未见报道的10%抗蚜威微乳剂制剂进行了研制,测定了微乳剂理化性状及生物活性。研制的10%抗蚜威ME透明温度范围-5℃￣60℃,乳液稳定性(20倍,1h)和低温稳定性(-5℃±1℃,14d)合格,热贮稳定性(54℃±2℃,14d)分解率小于5%,经时稳定性(2年)合格。对麦长管蚜室内生物测定结果表明,LC50毒力比25%抗蚜威WG高2.1倍。更多还原

【Abstract】 A 10% microemulsion formulation of pirimicarb,not previously reported either in or outside China,was prepared. Physical and chemical properties as well as biological activity of the microemulsion were determined. The pirimicarb 10% ME remained clear over a temperature range of -5 to 60℃,while emulsion stability (1:20 dilution,1 h) and low temperature stability (-5℃±1℃,14 d) both met specifications. The microemulsion maintained stability over 2 years. Decomposition rate during high temperature storage (54℃±2℃,14 d) was less than 5%. Bioactivity determi- nation with Macrosiphum avenae yielded an LC50 indicating a toxicity for the ME that was 2.1 times higher than that of a pirimicarb 25% WG.更多还原