小鼠白介素4(IL4)检测试剂盒在一步法测定中,当标本中受检抗原的含量很高时,过量抗原分别和固相抗体及酶标抗体结合,而不再形成"夹心复合物"。类同于沉淀反应中抗原过剩的后带现象,此时反应后显色的吸光值(位于抗原过剩带上)与标准曲线(位于抗体过剩带上)某一抗原浓度的吸光值相同,如按常法测读,所得结果将低于实际的含量,这种现象被称为钩状效应(hook effect),因为标准曲线到达高峰后呈钩状弯落。钩状效应严重时,小鼠白介素4(IL4)检测试剂盒反应甚至可不显色而出现假阴性结果。因此在使用一步法试剂测定标本中含量可异常增高的物质(例如血清中HBsAg、AFP和尿液hCG等)时,应注意可测范围的zui高值。用高亲和力的单克隆抗体制备此类试剂可削弱钩状效应。假使在被测分子的不同位点上含有多个相同的决定簇,例如HBsAg的a决定簇,也可用针对此决定的同一单抗分别包被固相和制备酶结合物。但在HBsAg的检测中应注意亚型问题,小鼠白介素4(IL4)检测试剂盒HBsAg有adr、adw、ayr、ayw4个亚型,虽然每种亚型均有相同的a决定簇的反应性,这也是用单抗作夹心法应注意的问题。

klA227Rb 兔亲环素B(CYPB)ELISA试剂盒现货供应 ELISA Kit for Cyclophilin B (CYPB) Oryctolagus cuniculus (Rabbit)
klA874Rb 兔缓激肽(BK)ELISA试剂盒现货供应 ELISA Kit for Bradykinin (BK) Oryctolagus cuniculus (Rabbit)
klA252Rb 兔载脂蛋白C1(APOC1)ELISA试剂盒现货供应 ELISA Kit for Apolipoprotein C1 (APOC1) Oryctolagus cuniculus (Rabbit)
klA267Rb 兔组织蛋白酶K(CTSK)ELISA试剂盒现货供应 ELISA Kit for Cathepsin K (CTSK) Oryctolagus cuniculus (Rabbit)
klA093Rb 兔巨噬细胞炎性蛋白1β(MIP1β)ELISA试剂盒现货供应 ELISA Kit for Macrophage Inflammatory Protein 1 Beta (MIP1b) Oryctolagus cuniculus (Rabbit)
klA277Rb 兔间隙连接蛋白43(CX43)ELISA试剂盒现货供应 ELISA Kit for Connexin 43 (CX43) Oryctolagus cuniculus (Rabbit)
klA284Rb 兔肝素辅因子Ⅱ(HCⅡ)ELISA试剂盒现货供应 ELISA Kit for Heparin Cofactor II (HCII) Oryctolagus cuniculus (Rabbit)
klA304Rb 兔半乳糖凝集素4(GAL4)ELISA试剂盒现货供应 ELISA Kit for Galectin 4 (GAL4) Oryctolagus cuniculus (Rabbit)
klA295Rb 兔谷胱甘肽过氧化酶1(GPX1)ELISA试剂盒现货供应 ELISA Kit for Glutathione Peroxidase 1 (GPX1) Oryctolagus cuniculus (Rabbit)
klA010Rb 兔结缔组织生长因子(CTGF)ELISA试剂盒现货供应 ELISA Kit for Connective Tissue Growth Factor (CTGF) Oryctolagus cuniculus (Rabbit)
klA013Rb 兔骨成型蛋白2(BMP2)ELISA试剂盒现货供应 ELISA Kit for Bone Morphogenetic Protein 2 (BMP2) Oryctolagus cuniculus (Rabbit)
klA014Rb 兔骨成型蛋白4(BMP4)ELISA试剂盒现货供应 ELISA Kit for Bone Morphogenetic Protein 4 (BMP4) Oryctolagus cuniculus (Rabbit)
klA021Rb 兔睫状神经营养因子(CNTF)ELISA试剂盒现货供应 ELISA Kit for Ciliary Neurotrophic Factor (CNTF) Oryctolagus cuniculus (Rabbit)
klA019Rb 兔白介素8受体α(IL8Rα)ELISA试剂盒现货供应 ELISA Kit for Interleukin 8 Receptor Alpha (IL8Ra) Oryctolagus cuniculus (Rabbit)小鼠白介素4(IL4)检测试剂盒