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BioReagent 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
甲胎蛋白(AFP,α-胎儿蛋白;有时也称为α-1-胎儿蛋白、α-胎儿球蛋白或α-胎儿蛋白)是一种蛋白质,由AFP基因编码。 AFP基因位于4号染色体的q臂(4q25)。母体AFP血清水平可用于筛查唐氏综合征、神经管缺陷和其他染色体异常 。AFP是胎儿发育过程中由卵黄囊和胎儿肝脏产生的一种主要血浆蛋白。它被认为是血清白蛋白的胎儿类似物。AFP与铜、镍、脂肪酸和胆红素结合,以单体、二聚体和三聚体形式存在。 本试剂盒采用双抗体夹心法酶联免疫吸附试验(ELISA)。往预先包被有大鼠甲胎蛋白(aFP)捕获抗体的微孔中,依次加入样本、标准品、生物素标记的检测抗体,HRP酶结合物,中间经过温育和洗涤,用底物TMB显色,TMB在过氧化物酶(HRP)的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样本中的大鼠甲胎蛋白(aFP)呈正相关。用酶标仪在450nm 波长下测定吸光度(OD值),计算样本浓度。
This kit employs the sandwich enzyme-linked immunosorbent assay (ELISA) principle. Microplate wells are pre-coated with a capture antibody specific to Rat aFP. Following this, the sample, standards, a biotin-conjugated detection antibody, and an HRP (horseradish peroxidase)-labeled conjugate are added sequentially to the wells. The procedure involves incubation and wash steps between each addition. For detection, TMB substrate is used. TMB yields a blue color in the presence of the peroxidase activity of HRP. The reaction is then stopped with an acid solution, which converts the blue color to a final yellow color. The intensity of the yellow color is directly proportional to the concentration of Rat aFP present in the sample. The optical density (OD) is measured at a wavelength of 450 nm using a microplate reader. Finally, the concentration of the target analyte in the sample is calculated based on the standard curve generated from the standards.