›› 2013, Vol. 40 ›› Issue (12): 70-75.

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Development of Colloidal Gold Rapid Detection Method of β-lactams and Tetracyclines in Milk

NIE Wen-ying1, TANG Cheng-ming2, WANG Jian-xia1, LUO Xiao-qin1, FENG Cai-wei1   

  1. 1. Beijing Kwinbon Biotechnology Co., Ltd., Beijing 102206, China;
    2. Veterinary Drug Control Institute of Guangxi Zhuang Autonomous Region, Nanning 530001, China
  • Received:2013-05-06 Online:2013-12-20 Published:2014-02-11

Abstract: Colloidal gold immunochromatographic was uesd for the determination of β-lactams and tetracyclines in milk. Tetracyclines hapten was obtained by chemical synthesis. Immunogen and envelope antigen were prepared by cephalosporins and tetracyclines hapten coupled to carrier protein. Monoclonal antibodies were obtained by immunogen immunizing mice. A rapid and simple colloidal gold immunochromatographic assay was established for the determination of β-lactams and tetracyclines in milk. 12 kinds of β-lactams and 4 kinds of tetracyclines were detected at the same time by the strip. The milk sample could be used to be detected without dilution. The detection time could be 3 to 5 min. The method could be efficiently used for mass samples screening in primary laboratory.

Key words: β-lactams; tetracyclines; colloidal gold immunochromatographic assay; rapid detection strip; milk

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