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鸡蛋中氟虫腈及其代谢产物残留量的检测 被引量:2

Detection of fipronil and its metabolite residues in egg
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摘要 氟虫腈是一种苯基吡唑类杀虫剂,通过水解、光解、还原作用会转化为毒性更高的氟虫腈砜、氟甲腈、氟虫腈硫醚。氟虫腈及其代谢产物对环境产生污染的同时,也会对生物体造成不良影响。以氟虫腈作为研究对象,探究鸡蛋中氟虫腈及其代谢产物氟虫腈砜、氟虫腈亚砜和氟甲腈的代谢转换规律。结果显示,基于液相色谱-质谱联用可实现对鸡蛋中氟虫腈及其代谢物残留量的快速、准确、高灵敏度筛查,其中,蛋清宜使用QuEChERS方法净化,而蛋黄宜使用固相萃取法净化。向鸡连续饲喂15 mg·kg-1(以体重计)的氟虫腈溶液3 d,鸡蛋中检测到的药物残留量最高的为氟虫腈的代谢残留物氟虫腈砜,其次为氟虫腈,以及少量的氟甲腈。用药的第2天,蛋黄与蛋清中开始检测到氟虫腈砜和氟虫腈;用药的第3天,蛋黄与蛋清出现氟甲腈残留,停药3周后,鸡蛋中仍有氟虫腈和氟虫腈砜的残留检出。
作者 白俊慧 柳爱春 何欣 BAI Junhui
出处 《浙江农业科学》 2020年第10期2142-2144,共3页 Journal of Zhejiang Agricultural Sciences
基金 杭州市农业科学研究院创新项目(2019HNCT-16)。
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