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。
脑钠素（BNP），又称B型钠肽，是一种由心室中的心肌细胞分泌的激素，以应对心室血量增加引起的拉伸。32个氨基酸的BNP多肽与称为NT-proBNP（BNPT）的原激素中76个氨基酸的N端片段相连，后者在生物学上没有活性。一旦释放，BNP就会与心房利钠因子受体NPRA结合并激活，在较小程度上与心房利钠肽（ANP）类似，但亲和力低10倍。然而，BNP的生物半衰期是ANP的两倍，而NT-proBNP的生物半衰期甚至更长，这使得这些肽比ANP更适合作为血液诊断测试的目标。 本试剂盒采用双抗体夹心法酶联免疫吸附试验（ELISA）。往预先包被有大鼠脑钠素(BNP)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脑钠素(BNP)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 BNP. 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 BNP 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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