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目的使用白蚁诱杀盒(含氟虫腈)防治香榧树白蚁后,检测氟虫腈在香榧中的残留量。方法利用气相色谱法对香榧样品中的氟虫腈残留量进行检测。结果氟虫腈及其3种代谢物在香榧中的平均添加回收率在66.5%～115.8%之间,相对标准差介于2.2%～15.6%之间,符合农药残留分析要求。而香榧样品中氟虫腈残留量检出浓度低于0.001 mg/kg。结论使用诱杀盒防治白蚁后,香榧果实无毒、无氟虫腈残留,符合环保要求。
OBJECTIVE: To determine the residual amount of fipronil in sweet clover after controlling termites termites by using termites decoy box (including fipronil). Methods The residual amount of fipronil in Xiangxiang samples was detected by gas chromatography. Results The average recoveries of fipronil and its three metabolites were between 66.5% and 115.8%, and the relative standard deviations were between 2.2% and 15.6%, which met the requirements of pesticide residue analysis. On the other hand, the detection limit of fipronil in the sample was less than 0.001 mg / kg. Conclusion After controlling the termites by using the trap box, the fruits of Tamarix ramosissima are non-toxic and there is no residue of fipronil, which meets the requirements of environmental protection.