关键词: 驱避剂, Deet, IR3535, 蚊虫, 有效防护时间

Abstract: Objective To study and develop the Long lasting effect repellant formulations,safe and effective over 8 h.Methods The laboratory test method(GB/T17322.10-1998) and the field test method were used to evalue the effect of these repellant formulations made in laboratory on field.Results The protective time of 10,12,13,14 formulations with 20% IR3535 were all over 8 h against Aedes albopictus in laboratory.In field the protective time of the above formulations was up to 9 h against Aedes at weed site of hill and up to 8 h against Anopheles at cornfield in countryside.Conclusion The available protective time of formulations made of 20% IR3535 and cellulose was over 8 h.There was not negative impact when these formulations were utilized on human skin.We found the cellulose has control releasing role for IR3535.The mentioned formulations could be used for preventing people from mosquito biting outdoor.