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中国应用生理学杂志 ›› 2018, Vol. 34 ›› Issue (2): 187-192.doi: 10.12047/j.cjap.5582.2018.045

• 技术方法 • 上一篇    

阿特拉津高灵敏酶联免疫吸附检测法的建立

李晓丽, 王婷婷, 刘凯, 宁保安, 马新华, 刘楠, 欧国荣, 高志贤, 刘忠文   

  1. 军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室 天津 300050
  • 收稿日期:2017-03-09 修回日期:2017-12-02 出版日期:2018-03-28 发布日期:2018-05-22
  • 通讯作者: 高志贤, 刘忠文 E-mail:gaozhx@163.com;zhongwenliu@126.com
  • 基金资助:
    国家自然科学基金(81472985,21477162,AWS15J006)

High sensitive ELISA for detection of atrazion

LI Xiao-li, WANG Ting-ting, LIU Kai, NING Bao-an, MA Xin-hua, LIU Nan, OU Guo-rong, GAO Zhi-xian, LIU Zhong-wen   

  1. Institute of Environmental and Operational Medicine, Military Medical Research Institute of Military Academy Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
  • Received:2017-03-09 Revised:2017-12-02 Online:2018-03-28 Published:2018-05-22
  • Supported by:
    国家自然科学基金(81472985,21477162,AWS15J006)

摘要: 目的:建立高灵敏度的阿特拉津酶联免疫吸附检测法。方法:将间接竞争ELISA进行条件优化以提高检测灵敏度,包括包被抗原与一抗的最佳工作浓度筛选、选择一抗的最佳稀释度对包被抗原进行细化筛选、不同有机溶剂对竞争结合反应的影响、酶标二抗稀释度筛选等。用建立的酶联免疫检测法检测实际样品,再与高效液相色谱法(HPLC)检测进行比较。结果:利用优化后条件建立了阿特拉津间接竞争ELISA检测曲线,标准曲线的相关系数R2=0.9958,相关性较好。另由此标准曲线可得LOD (最低检出限)为1.972 ng/ml。用于检测实际样品,回收率在80%-120%之间。当添加样品浓度为(0~6) ng/ml时,该法的检测灵敏度高于HPLC。结论:新建立的阿特拉津ELISA特异性好、精密度高,可代替大型仪器用于阿特拉津实际样品检测。

关键词: 阿特拉津, 检测, 酶联免疫吸附法

Abstract: Objective:To set up ELISA for detection of atrazine with high precision. Methods:The reaction condition of indirect-ELISA was optimized, including atrazine-ovalbumin(AT-OVA) concentration and primary antibody concentration, organic solvent, goat anti-rat immunoglobin G-horseradish peroxidase(IgG-HRP) concentration. The actual samples were detected by the ELISA method established in our laboratory. Then the ELISA method was compared with the HPLC. Results:The specification curve of indirect-ELISA was set up after optimization. The relation coefficient R2=0.9958. The limit of detection (LOD) was 1.972 ng/ml. The percent recovery of the actual samples was in range of 80%~120%. The ELISA detection sensitivity was higher than the HPLC in the range of 0 ng/ml~6 ng/ml atrazine. Conclusion:The ELISA to detect atrazine has good specificity and high precision. And it can be applied in testing real atrazine samples replacing of the large-scale instrument.

Key words: atrazine, detection, ELISA

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