人B-淋巴细胞趋化因子1试剂盒

人B-淋巴细胞趋化因子1试剂盒  检测范围：96T

2pg/ml-80pg/ml

使用目的：

人B-淋巴细胞趋化因子1试剂盒 用于测定人血清、血浆及相关液体样本中B-淋巴细胞趋化因子1(BLC-1/CXCL13)含量。

实验原理

本试剂盒应用双抗体夹心法测定标本中人BLC-1/CXCL13水平。用纯化的人BLC-1/CXCL13抗体包被微孔板，制成固相抗体，往包被单抗的微孔中依次加入BLC-1/CXCL13，再与HRP标记的BLC-1/CXCL13抗体结合，形成抗体-抗原-酶标抗体复合物，经过*洗涤后加底物TMB显色。TMB在HRP酶的催化下转化成蓝色，并在酸的作用下转化成最终的黄色。颜色的深浅和样品中的BLC-1/CXCL13呈正相关。用酶标仪在450nm波长下测定吸光度（OD值），通过标准曲线计算样品中人BLC-1/CXCL13浓度。

试剂盒组成

标本要求 

1．标本采集后尽早进行提取，提取按相关文献进行，提取后应尽快进行实验。若不能马上进行试验，可将标本放于-20℃保存，但应避免反复冻融

2．不能检测含NaN3的样品，因NaN3抑制辣根过氧化物酶的（HRP）活性。

操作步骤

• 标准品的稀释：本试剂盒提供原倍标准品一支，用户可按照下列图表在小试管中进行稀释。

• 加样：分别设空白孔（空白对照孔不加样品及酶标试剂，其余各步操作相同）、标准孔、待测样品孔。在酶标包被板上标准品准确加样50μl，待测样品孔中先加样品稀释液40μl，然后再加待测样品10μl（样品最终稀释度为5倍）。加样将样品加于酶标板孔底部，尽量不触及孔壁，轻轻晃动混匀。
• 温育：用封板膜封板后置37℃温育30分钟。   
• 配液：将30倍浓缩洗涤液用蒸馏水30倍稀释后备用
• 洗涤：小心揭掉封板膜，弃去液体，甩干，每孔加满洗涤液，静置30秒后弃去，如此重复5次，拍干。
• 加酶：每孔加入酶标试剂50μl，空白孔除外。
• 温育：操作同3。
• 洗涤：操作同5。
• 显色：每孔先加入显色剂A50μl，再加入显色剂B50μl，轻轻震荡混匀，37℃避光显色15分钟.
• 终止：每孔加终止液50μl，终止反应（此时蓝色立转黄色）。
• 测定：以空白空调零，450nm波长依序测量各孔的吸光度（OD值）。 测定应在加终止液后15分钟以内进行。

• Calculate

  Take the standard density as the horizontal, the OD value for the vertical ,draw the standard curve on graph paper, Find out the corresponding density according to the sample OD value by the Sample curve, multiplied by the dilution multiple, or calculate the straight line regression equation of the standard curve with the standard density and the OD value ,with the sample OD value in the equation, calculate the sample density, multiplied by the dilution factor, the result is the sample actual density.

  Important notes

• The kit takes out from the refrigeration environment should be balanced 15-30 minutes in the room temperature, ELISA plates coated if has not use up after opened, the plate should be stored in Sealed bag.
• washing buffer will Crystallization separation, it can be heated the water helps dissolve when dilute . Washing does not affect the result.
• add Sample with sampler Each step, And proofread its accuracy frequently, avoids the experimental error. add sample within 5 min, if the number of sample is much , recommend to use Volley .
• if the testing material content is excessively higher (The sample OD is bigger than the first standard well ),please dilute Sample (n-fold), Please diluente and multiplied by the dilution factor.（×n×5）.
• Closure plate membrane only limits the disposable use, to avoid cross-contamination.
• The substrate evade the light preservation.
• Please according to use instruction strictly, The test result determination must take the microtiter plate reader as a standard.
• All samples, washing buffer and each kind of reject should according to infective material process.
• Do not mix reagents with those from other lots.

• Storage and validity

  1．Storage：  2-8℃.

  2．validity： six months