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目的通过对水基型天然除虫菊素卫生杀虫气雾剂的药液制备、生物活性和成品气雾剂罐体安全型的研究,为水基型天然除虫菊素卫生杀虫气雾剂的产业化发展提供依据。方法按照GB/T 13917.1-2009标准,采用0.4%的水基剂型天然除虫菊素气雾杀虫剂进行实验室内药效试验,测试药物对蚊、蝇、德国小蠊生物活性效果;按照GB/T 14449-2008标准,对成品气雾剂罐体进行安全测试。结果通过对蚊、蝇、德国小蠊的效果测试,KT50值分别为4.3、3.7、8.6 min,处理后24(72)h死亡率为100%;采用压缩空气做抛射剂,温度从25℃上升到50℃,罐体内的压力仅增加0.03 MPa。结论水基型天然除虫菊素卫生杀虫气雾剂的杀虫效果符合A级标准的要求;罐体压力随温度的变化值较小,安全性极高。
OBJECTIVE To study the preparation, biological activity and safety of finished aerosol cans of water-based natural pyrethrin insecticide aerosol for the industrialization of water-based natural pyrethrin insecticide aerosol Provide basis for development. Methods According to the standard of GB / T 13917.1-2009, 0.4% aqueous natural pyrethrin aerosol insecticide was used in the laboratory to test the efficacy of the drug against mosquitoes, flies and German cockroach. According to GB / T 14449-2008 standard, the finished aerosol cans for safety testing. Results The results of tests on mosquitoes, flies and German cockroaches showed that the KT50 values were 4.3, 3.7 and 8.6 min, respectively, and the mortality rate was 100% after 24 (72) h treatment. Compressed air was used as propellant and the temperature was raised from 25 ℃ At 50 ° C, the pressure in the tank only increased by 0.03 MPa. Conclusion The insecticidal effect of water-based natural pyrethrin insecticidal aerosol meets the requirements of A-class standard. The change of tank pressure with temperature is small and the safety is very high.