畜牧兽医学报 ›› 2008, Vol. 39 ›› Issue (3): 380-384.doi:

• 研究简报 • 上一篇    

链霉素残留检测ELISA试剂盒的研制及应用

范国英;王顺岗;王自良;张改平;邓润广;杨艳艳   

  1. 1河南科技学院动物科学学院,新乡 453003;2河南省农业科学院免疫学重点实验室,郑州 450002
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-03-24 发布日期:2008-03-24

Development and Application of Competitive ELISA Kit for Rapid Detection of Streptomycin Residues

FAN Guo-ying;WANG Shun-gang;WANG Zi-liang;ZHANG Gai-ping;DENG Run-guang;YANG Yan-yan   

  1. 1College of Animal Science,Henan Institute of Science and Technology,Xinxiang 453003,China; 2Key Laboratory for Animal Immunology, Henan Academy of Agricultural Science,Zhengzhou 450002,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-03-24 Published:2008-03-24

摘要: 本研究采用EDC法人工合成链霉素抗原(SM-BSA),免疫BALB/c小鼠,通过杂交瘤技术获得了分泌抗链霉素单克隆抗体的杂交瘤细胞株,建立了快速检测链霉素(SM)残留的酶联免疫方法,并成功研制了试剂盒。然后对其灵敏度、准确度、特异性、基质效应性等技术指标进行检测,同时应用该试剂盒对生长猪尿液中的残留情况进行检测。结果表明:除双氢链霉素外,该试剂盒与其它抗生素类药物均无交叉反应;线性检测范围为1~128 μg/L,相关系数R2=0.925 1,灵敏度为0.45 μg/L,半数抑制浓度(IC50)为7.76 μg/L,检测限为1 μg/L;猪尿样的平均添加回收率为84.1%;基质对该试剂盒的检测结果影响不大。该试剂盒具有快速、敏感、特异、简便等特点,适合于SM残留的快速检测,具有较高的推广应用价值。

Abstract: BALB/c mice were immunized with streptomycin-bovine serum albumin and hybridoma lines that secrete monoclonal antibody against streptomycin(SM mAb) were filtered with cell fusion. A competitive ELISA test kit for detection of streptomycin(SM-Kit)was developed with anti-SM monoclonal antibody(SM mAb) and its sensitivity,veracity,specificity and the effect of matrix were tested, respectively. At the same time, the urine of the swine was detected with this ELISA-Kit. The results indicated that the SM-Kit has little or no crossreactivity with other antibiotics besides of dihydrostreptomycin;the linear detection was 1.0 to 128.0 μg/L(R2=0.925 1),the sensitivity was 0.45 μg/L,the IC50 was 7.76 μg/L and the detection limit was 1 μg/L. The recoveries of SM spiked in pig urine was 84.1%. The matrix has no effect on the results of the SM-Kit. The SM-Kit possessed rapidity, sensitivity, specificity and briefness and was proved useful in the rapid test of SM residues in animal.