›› 2007, Vol. 34 ›› Issue (10): 124-126.

• 公共卫生 • 上一篇    下一篇

醋酸甲孕酮(MPA)间接竞争ELISA检测方法的建立

高艳兵1 , 叶绍辉1 , 龚振明2   

  1. 1.云南农业大学动物科学技术学院,昆明 650201;2.上海交通大学农业与生物学院,上海 201101
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20

Establishment of Indirect Competitive Enzyme-linked Immunosorbent Assay for Detecting the Residues of MPA

GAO Yanbing1,YE Shaohui1,GONG Zhenming2   

  1. 1.College of Animal Science, Yunnan Agricultural University, Kunming 650201,China; 2.School of Agriculture and Biology, Shanghai Jiaotong University,Shanghai 201101,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20

摘要: 将半抗原醋酸甲孕酮(MPA)衍生物与牛血清白蛋白(BSA)偶联后,作为包被原与游离的醋酸甲孕酮竞争抗MPA多克隆抗体,通过该模式建立间接竞争ELISA方法检测MPA的残留量。试验结果表明:理想的包被抗原为0.625 μg/ml,抗体的工作浓度为1∶8000,标准曲线在1 ~50 ng/ml之间线性关系较好,最低检测限0.1 ng/ml, 得回归方程y=-1.1479x+0.9426(r2=0.9679),批内和批间变异系数分别为5. 35%、10. 89%。

关键词: 间接ELISA; 半抗原; 标准曲线

Abstract: Coupled with the BSA, hapten MPA, used as a coating antigen,combined with anti-MPA polyclonal antibody with the competition of free MPA. Indirect competition ELISA was set up according to abovementioned mode to detect the residue level of MPA in the example. The results of the experiment demonstrates that the optimal concentration of the coating antigen was 0.75 μg/ml. Polyclonal antibody against MPA was 1∶8000 and the standard curve had a good linearity in the rang of 1~50 ng/ml with detection limit being 0.1 ng/ml. The regression equation y=1.1479x+0.9426(r2=0.9679) were obtained while the coefficient of variation of intraassay and extra-assay were 5.35%,10.89% respectively. 

Key words: ciELISA; half antigen; standard curve 

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