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。
p-tau231 能在出现明显的 Aβ斑块病理学之前更好地捕捉到最早的大脑 Aβ变化，是一种很有前景的血液生物标记物。Tau蛋白是中枢神经元中的微管相关蛋白，参与微管组装与稳定；其特定氨基酸位点（如苏氨酸231）磷酸化后形成p-Tau231，功能异常导致微管稳定性下降，引发神经元功能障碍。p-Tau231是阿尔茨海默病（AD）患者脑中异常磷酸化Tau蛋白的重要标志物之一，其水平升高与AD的病理进程密切相关。 本试剂盒采用双抗体夹心法酶联免疫吸附试验（ELISA）。往预先包被有人磷酸化tau231蛋白(231P-tau)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人磷酸化tau231蛋白(231P-tau)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 Human 231P-tau. 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 Human 231P-tau 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.
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