河南农业科学 ›› 2020, Vol. 49 ›› Issue (12): 77-82.DOI: 10.15933/j.cnki.1004-3268.2020.12.011

• 农业资源与环境 • 上一篇    下一篇

基于单克隆抗体的胶体金免疫层析法快速检测丙溴磷

王兆芹1,张富生2,邓家军2,马玉华1,崔廷婷1,3,崔娜1,万宇平1,3   

  1.   (1.北京勤邦生物技术有限公司,北京 102206; 2.江西省农产品质量安全检测中心,江西 南昌 330046; 3.北京市食品安全免疫快速检测工程技术研究中心,北京 102206)
  • 收稿日期:2020-03-24 出版日期:2020-12-15 发布日期:2020-12-15
  • 通讯作者: 万宇平(1982-),男,四川眉州人,正高级工程师,本科,主要从事食品安全检测研究。E-mail:beijingqinbang@163.com
  • 作者简介:王兆芹(1976-),女,黑龙江牡丹江人,工程师,本科,主要从事食品安全检测研究。E-mail:wangzhaoqin@kwinbon.com
  • 基金资助:
    北京市科技计划课题(Z181100009318006)

Rapid Detection of Profenofos Using Colloidal Gold Immunoassay Based on Monoclonal Antibody

WANG Zhaoqin1,ZHANG Fusheng2,DENG Jiajun2,MA Yuhua1,CUI Tingting1,3,CUI Na1,WAN Yuping1,3   

  1. (1.Beijing Kwinbon Biotechnology Co.,Ltd.,Beijing 102206,China; 2.Testing Center of Agro-Product Quality and Safety of Jiangxi Province,Nanchang 330046,China; 3.Beijing Engineering Research Centre of Food Safety Immunodetection,Beijing 102206,China)
  • Received:2020-03-24 Published:2020-12-15 Online:2020-12-15

摘要: 为实现蔬菜中丙溴磷的现场快速检测,采用免疫层析技术对丙溴磷残留的胶体金快速检测试纸条的制备开展研究。用胶体金颗粒标记丙溴磷单克隆抗体作为检测探针,以硝酸纤维素膜为固相载体,包被丙溴磷半抗原-卵清蛋白偶联物为检测线、羊抗鼠IgG为质控线,建立丙溴磷的胶体金快速检测试纸条。结果表明,该试纸条的检出限为0.10 mg/kg、灵敏度96%、特异性93%、假阴性率4%、假阳性率7%、相对准确度94.5%,重复性较好。胶体金试纸条操作简便、检测速度快、成本低,适用于蔬菜中丙溴磷残留的现场筛查和检测。

关键词: 丙溴磷, 单克隆抗体, 胶体金免疫层析, 快速检测, 试纸条

Abstract: In order to realize the rapid detection of profenofos in vegetables,the preparation of colloidal gold strip for detection of profenofos was studied by immunochromatographic technique.Colloidal gold immunochromatographic strips for rapid detection of profenofos was established by using monoclonal antibody labeled with colloidal gold particles as detection probe,and nitrocellulose membrane was used as solid carrier,profenofos-OVA conjugate as the detection line and goat-anti-rat IgG as the control line.The results showed that the detection limit of the strip was 0.10 mg/kg.The sensitivity,specificity,false negative rate and false positive rate of the strip were 96%,93%,4% and 7%,respectively.The relative accuracy of the strip was 94.5% with good repeatability. The developed colloidal gold immunoassay is simple in operation,fast in detection,and low in cost,and is suitable for on-site screening and detection of profenofos residues in vegetables.

Key words: Profenofos, Monoclonal antibody, Colloidal gold immunoassay, Rapid detection, Test strip

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