中国乳业 ›› 2022, Vol. 0 ›› Issue (10): 65-71.doi: 10.12377/1671-4393.22.10.12

• 质量安全 • 上一篇    下一篇

胶体金免疫层析试纸条同时检测生乳中吡虫啉、吡唑醚菌酯、氟虫腈残留的研究

陈发荣1, 金洪伟2*, 韩琰旭1, 吴月皓1, 齐瑜1   

  1. 1 北京艾旗斯德科技有限公司,北京101102;
    2 深圳市光明区疾病预防控制中心,广东深圳 518106
  • 出版日期:2022-10-25 发布日期:2022-11-11
  • 通讯作者: *金洪伟(1979-),男,黑龙江哈尔滨人,硕士,副主任技师,研究方向为卫生检验。
  • 作者简介:陈发荣(1986-),男,江西上饶人,硕士,中级工程师,研究方向为食品安全检测;韩琰旭(1980-),男,北京人,博士,工程师,研究方向为食品安全检测;吴月皓(1990-),男,河北衡水人,本科,助理工程师,研究方向为食品安全检测;齐瑜(1994-),女,山东淄博人,本科,助理工程师,研究方向为食品安全检测。
  • 基金资助:
    深圳市科创委2021年度基础研究面上项目(JCYJ20210324140406018); 深圳市光明区软科学研究项目(2020R01109)

Determination of Pesticide Residues in Raw Milk by Colloidal Gold Chromatography

CHEN Farong1, JIN Hongwei2*, HAN Yanxu1, WU Yuehao1, QI Yu1   

  1. 1Beijing Aiqiside Technology Co.,Ltd.,Beijing 101102;
    2Shenzhen Guangming District Center for Disease Control and Prevention,Shenzhen Guangdong 518106
  • Online:2022-10-25 Published:2022-11-11

摘要: [目的]开发同时检测生乳中吡虫啉(Imidacloprid)、吡唑醚菌酯(Pyrazole ether ester)、氟虫腈(Fluorine worm nitrile)3 种农药残留的胶体金免疫层析的方法。[方法]采用柠檬酸三钠还原法制备胶体金溶液,冻干法制备胶体金标抗体冻干粉,置于微孔杯内,复溶后,吸取全部反应液于胶体金试纸条样品垫上,经层析,在免疫层析试纸条上显示结果。[结果]吡虫啉、吡唑醚菌酯、氟虫腈3 种农药检测检测下限分别为0.1 mg/kg,0.03mg/kg,0.02 mg/kg,保质期为1 年,符合《GB2763—2021食品安全国家标准 食品中农药最大残留限量》对生乳中农药残留做出明确限量规定吡虫啉、吡唑醚菌酯、氟虫腈最大残留量0.1 mg/kg,0.03 mg/kg,0.02 mg/kg要求。[结论]该方法操作简单,快速灵敏,稳定准确,可以作为前期农残检测的快速筛查手段。

关键词: 生鲜乳, 吡虫啉, 吡唑醚菌酯, 氟虫腈, 胶体金

Abstract: [Objective] To develop a colloidal gold immunochromatography method for simultaneous detection of Imidacloprid,Pyrazole ether ester and Fluorine worm nitrile residues in raw milk. [Method] The colloidal gold solution was prepared by trisodium citrate reduction method, and the colloidal gold standard antibody lyophilized powder was prepared by lyophilization method. The powder was placed in a microporous cup,and the reaction solution was absorbed on the sample pad of colloidal gold test strip after resolution. [Result] The sensitivity of three pesticides,imidacloprid,pyrazoline and fipronil,were 0.1 mg/kg, 0.03mg/kg and 0.02 mg/kg,respectively. The shelf life was 1 year. In accordance with GB2763-2021 National Food Safety Standard Maximum Residue Limits for Pesticides in Food,the maximum residue limits of imidacloprid,pyrazolylosteril and fipronil in raw milk are specified to be 0.1mg/kg,0.03mg/kg and 0.02mg/kg respectively. [Conclusion] This method is simple, rapid,sensitive,stable and accurate,and can be used as a rapid screening method for early detection of agricultural residues.

Key words: fresh milk, imidacloprid, pyrazole ether ester, fluorine worm nitrile, colloidal gold

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