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双抗体夹心ELISA法检测相思子毒素 被引量:13

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摘要 目的:建立相思子毒素(abrin)的酶联免疫检测方法,为abrin临床诊断、中毒治疗、法医学鉴定等应用领域提供技术基础和参考依据。方法:采用双抗体夹心ELISA法来检测微量abrin。结果:该法检测abrin线性范围为0.25~125μg/L,线性回归方程为Y=0.51015X+0.4153(r=0.9880,n=10,P<0.0001),检测下限为0.25μg/L。不同浓度蓖麻毒素(ricin)、葡萄球菌肠毒素B(SEB)对检测结果基本无干扰。该法能用于abrin毒素污染水样、土样、食品、血液等模拟样品的分析,相对标准差为3.52%~4.86%,具有较好的重现性。结论:成功地建立了双抗体夹心ELISA法检测abrin,将多克隆抗体的强富集能力和单克隆抗体(mAb)的特异性结合起来,提高检测的灵敏度和特异性,可适用于各种微量abrin样品的分析。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2007年第8期763-764,766,共3页 Chinese Journal of Cellular and Molecular Immunology
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参考文献10

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