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食品研究与开发:2017,38(3):119-123
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上转换发光免疫层析法快速检测牛奶中雌二醇
姜会聪1,任舒悦2,王瑜2,李巧凤1,白家磊2,彭媛2,宁保安2,孙思明2,高志贤1,2,*
(1. 郑州大学 公共卫生学院,河南 郑州 450001; 2. 军事医学科学院 卫生学环境医学研究所,天津市环 境与食品安全风险监控技术重点实验室,天津 300050)
An Up-converting Phosphor Technology Based Immunostrip Assay for Rapid Detection of Estradiol in Milk
JIANG Hui-cong1, REN Shu-yue2, WANG Yu2, LI Qiao-feng1, BAI Jia-lei2, PENG Yuan2,NING Bao-an2, SUN Si-ming2, GAO Zhi-xian1,2,*
(1. College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; 2. Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Health and Environmental Medicine,Military Medical Sciences,Tianjin 300050, China)
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投稿时间:2016-09-28    
中文摘要: 建立定量快速检测雌二醇(E2)的上转换免疫层析技术。 以上转换发光材料(UCP)为新型标记物,采用戊二醛法 偶联单克隆抗体(mAb),制备 UPT- mAb 复合物,并以其作为探针,基于小分子竞争结合,建立免疫层析试纸条方法,并 对试纸条性能进行评价。方法特异性强,稳定性好,灵敏度高,最低检出限低至 2.75 ng/mL,线性范围为 5 ng/mL~2 000 ng/mL,回收率 88.88 %~103.5 %,变异系数 CV<10 %。成功构建了上转换免疫层析法用于检测雌二醇,适用于现场 快速检测,具有良好的经济价值和应用前景。
Abstract:To develop an up-converting phosphor technology based immunostrip assay for quantitative detection of estradiol. A composition contained up-converting phosphor (UCP) as a novel lable and estradiol antibody (E2-mAb) with glutaraldehyde method. The estradiol was detected by the fluorescent immunostrip assay based on indirect competitive principle which had this composition as a probe. Detection performance including stabil- ity, specificity and sensitivity was evaluated. The method showed well stability, specificity and sensitivity with the detection limit of 2.75 ng/mL, the linear range of 5 ng/mL to 2 000 ng/mL, the recovery of 88.88 % to 103.5 %, and the coefficient of variation (CV) less than 10 %. The established assay for E2 detection can be successfully used to fast-field analysis and has good economic value and broad application prospect.
文章编号:201703026     中图分类号:    文献标志码:A
基金项目:国家自然科学基金(21477162);天津市科技支撑计划项目 (14ZCZDSF00021);天津市应用基础与前沿技术研究计划(15JCYBJC51200)
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