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阻断剂 Products (25)
姓名 | 种类 | 形式 | 宿主/来源 | 亚型 | 主要应用 | 单位 | 安全信息表 | COA | 点击此处订购样品 | |||
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TRU Block 3 | Purified | Confidential | N/A | Blo | GM | A66803H | View SDS | View COA | Order A Sample | |||
TRU Block 2 | Purified | Confidential | N/A | Blo | GM | A66802H | View SDS | View COA | Order A Sample | |||
TRU Block™ 阻断剂 | Purified | Confidential | N/A | Blo | GM | A66800H | View SDS | View COA | Order A Sample | |||
Mouse IgG-Protein A 30-40mg/ml | Purified | Mouse Serum | N/A | Blo | GM | A66190M-NA | View SDS | View COA | Order A Sample | |||
Mouse IgG Protein A (proclin) | Purified | Mouse Serum | N/A | Blo | GM | A66189M | View SDS | View COA | Order A Sample | |||
Mouse IgG (ca Cut)(10-20mg/mL) | Purified | Mouse Serum | N/A | Blo | GM | A66187M | View SDS | View COA | Order A Sample | |||
Mouse IgG (azide Free) | Purified | Mouse Serum | N/A | Blo | GM | A66186M-NA | View SDS | View COA | Order A Sample | |||
Mouse IgG (9-13mg/mL) | Purified | Mouse Serum | N/A | Blo | GM | A66186M | View SDS | View COA | Order A Sample | |||
MOUSE IGG-PROTEIN A 50-55MG/ML | Purified | Mouse Serum | N/A | Blo | GM | A66185M-NA | View SDS | View COA | Order A Sample | |||
Mouse IgG Protein A 50-55 Mg/m | Purified | Mouse Serum | N/A | Blo | GM | A66185M | View SDS | View COA | Order A Sample | |||
Mouse IgG Protein A 22-28mg/mL | Purified | Mouse Serum | N/A | Blo | GM | A66181M | View SDS | View COA | Order A Sample | |||
BSA, Standard Powder | Purified | Bovine | N/A | EIA,IHC,WB | GM | A64801B | View SDS | View COA | Order A Sample | |||
Elisa IgM Assay Diluent I | Purified | Goat | N/A | EIA | ML | 8120 | View SDS | View COA | Order A Sample | |||
TRU Block™ ULTRA | Purified | Confidential | N/A | Blo,EIA,LF | GM | 8000 | View SDS | View COA | Order A Sample | |||
Goat anti Human IgG+IgM+IgA Hl | HRP | Goat | N/A | IHC,WB | ML | W99591G | View SDS | View COA | Order A Sample | |||
Goat anti Human IgG (Fc) | HRP | Goat | N/A | EIA,IHC,WB | ML | W99036P | View SDS | View COA | Order A Sample | |||
Goat anti-human IgG (h+l) | FITC | Goat | N/A | EIA,IEP | MG | W01262FL | View SDS | View COA | Order A Sample | |||
Goat anti Human IgG (H&L) | Alexa Fluor 488 | Goat | N/A | EIA,IEP | MG | W01260AF | View SDS | View COA | Order A Sample | |||
Goat anti Human IgG (Fc) | Aff.Pur. | Goat | N/A | EIA | MG | W01252G | View SDS | View COA | Order A Sample | |||
GOAT ANTI-HUMAN IGG (FC)-DILUT | Purified | Goat | N/A | Nep,TIA,IgM | ML | L15408G | View SDS | View COA | Order A Sample | |||
Goat anti-human IgG (Fc) | Monospecific | Goat | N/A | EIA,IEP,Nep,TIA | ML | L15406G | View SDS | View COA | Order A Sample | |||
Coating Stabilizer & Block Buf | Liquid | - | N/A | N/A | ML | J16430D | View SDS | View COA | Order A Sample | |||
Mouse-FREE IgG | Purified, Liquid | Cell Culture | N/A | Blo | MG | BN1300 | View SDS | View COA | Order A Sample | |||
K-Block | Purified | Cell Culture | N/A | Blo | MG | BN1200 | View SDS | View COA | Order A Sample | |||
Goat anti-human IgG(Fc) | Aff.Pur. | Goat | N/A | N/A | MG | W66040G | View SDS | View COA | Order A Sample |
TRU Block™ 阻断剂™ TRU Block™ - 针对所有异嗜性干扰
用于IgM检测的IgG阻断剂
IgG和IgM抗体之间对抗原结合位点的竞争会显著降低IgM检测的灵敏度。 此外,IgG可与类风湿因子(RF)形成免疫复合物,并与特异性IgM竞争底物结合位点。 用山羊抗人IgG或IgM稀释液预处理患者标本,可以去除IgG和RF-IgM。
常见问答:免疫检测阻断剂
用于体外诊断(IVD)的免疫检测中通常使用动物来源的抗体来识别特定的疾病标志物。 病人血液存在的抗体,在免疫检测中可能与动物抗体发生反应,而引起错误的结果。 虽然出现这些干扰的概率很低,但一旦出现假阳性结果对诊断检测的质量和竞争力会造成负面影响,对那些误诊的病人也将带来重大的负面影响。
人抗鼠抗体 (HAMA)是夹心法和竞争法检测中常见的会引起假阳性或假阴性的抗体干扰。
不是的。HAMA仅代表一种类型的异嗜性抗体(HA)干扰——其他包括HA对其他动物动物,如山羊(HAGA)、绵羊(HASA)和兔子(HARA)的干扰,当使用来自这些动物的抗体进行免疫检测时,也可能会导致错误的结果。 除了HA,还有另一类干扰称为类风湿因子(RF),这是一种自身抗体,与患者自身的免疫球蛋白(Ig)反应,可以与动物Ig交叉反应,类似于HA/HAMA干扰。
interference.
类风湿因子是一种针对IgG Fc部分的自身抗体(通常为IgM)。 它在患有类风湿的人群中很常见,约有一半的类风湿患者会出现这种情况,但在没有类风湿关节炎的人群中,大约每20人中就有1人的类风湿因子水平较高,在老年患者中更常见。
RF类似于异嗜性抗体,即使在没有分析物的情况下,也有可能通过交联检测抗体而导致错误的检测结果,它通常是通过与检测抗体的Fc部分结合。 RF可对不同种类的IgG产生反应,包括人IgG和兔IgG。
我们的建议是: a) 使用与捕获或检测抗体宿主相同种类的阻断剂; b) 小鼠或山羊IgG的浓度是用于测定的MAb/PAb浓度的10倍。 (例如,如果检测中使用5ug/mL的抗体/共轭物,那么加入50ug/mL的动物IgG)
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