小鼠成纤维细胞生长因子23(FGF-23)酶联免疫分析

试剂盒使用说明书

本试剂盒仅供研究使用。

检测范围：                                                         96T

30pg/ml-800pg/ml

使用目的：

本试剂盒用于测定小鼠血清、血浆及相关液体样本中FGF-23含量。

实验原理

本试剂盒应用双抗体夹心法测定标本中小鼠FGF-23水平。用纯化的小鼠FGF-23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FGF-23，再与HRP标记的FGF-23抗体结合，形成抗体-抗原-酶标抗体复合物，经过彻底洗涤后加底物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FGF-23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小鼠FGF-23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

1.        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。

2.        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。

3.        温育：用封板膜封板后置37℃温育30分钟。  

4.        配液：将30倍浓缩洗涤液用蒸馏水30倍稀释后备用

5.        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。

6.        加酶：每孔加入酶标试剂50μl，空白孔除外。

7.        温育：操作同3。

8.        洗涤：操作同5。

9.        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10分钟.

10.    终止：每孔加终止液50μl，终止反应（此时蓝色立转黄色）。

11.    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。

操作程序总结：

计算

  以标准物的浓度为横坐标，OD值为纵坐标，在坐标纸上绘出标准曲线，根据样品的OD值由标准曲线查出相应的浓度；再乘以稀释倍数；或用标准物的浓度与OD值计算出标准曲线的直线回归方程式，将样品的OD值代入方程式，计算出样品浓度，再乘以稀释倍数，即为样品的实际浓度。

注意事项

1．试剂盒从冷藏环境中取出应在室温平衡15-30分钟后方可使用，酶标包被板开封后如未用完，板条应装入密封袋中保存。

2．浓洗涤液可能会有结晶析出，稀释时可在水浴中加温助溶，洗涤时不影响结果。

3．各步加样均应使用加样器，并经常校对其准确性，以避免试验误差。一次加样时间最好控制在5分钟内，如标本数量多，推荐使用排枪加样。

4． 请每次测定的同时做标准曲线，最好做复孔。如标本中待测物质含量过高（样本OD值大于标准品孔第一孔的OD值），请先用样品稀释液稀释一定倍数（n倍）后再测定，计算时请最后乘以总稀释倍数（×n×5）。

5． 封板膜只限一次性使用，以避免交叉污染。

6．底物请避光保存。

7．严格按照说明书的操作进行，试验结果判定必须以酶标仪读数为准.

8．所有样品，洗涤液和各种废弃物都应按传染物处理。

9．本试剂不同批号组分不得混用。

保存条件及有效期

1．试剂盒保存：；2-8℃。

2．有效期：6个月

Human fibroblastgrowth factor-23(FGF-23)

FOR RESEARCH USE ONLY

Assay range：30pg/mlC800 pg/ml                48determinations

Purpose

This kit allows for the determination of FGF-23 concentrations in Human serum, cellculture supernates andotherbiological fluids

Principle of the assay

The kit assay Human FGF-23 level in the sample，use Purified HumanFGF-23 antibody tocoat microtiter plate wells, make solid-phase antibody, then add FGF-23 to wells, Combined FGF-23 antibody which With HRP labeled goatanti-Human become antibody - antigen - enzyme-antibody complex, after washing Completely, Add TMB substrate solution,TMB substratebecomes blue color At HRP enzyme-catalyzed, reaction is terminated by the addition of asulphuric acid solution and the color change is measured spectrophotometricallyat a wavelength of 450 nm. The concentration of Human FGF-23 inthe samples isthen determined by comparing the O.D. of the samples to the standard curve.

Materials provided with the kit

Specimen requirements

1.  extract as soon as possible after Specimen collection,and according to the relevant literature, andshould be experiment as soon as possible after the extraction. If it can’t, specimen can be kept in-20 ℃to preserve, Avoid repeated freeze-thaw cycles.

2.  Can’tdetect the sample which contain NaN3, because NaN3 inhibits HRPactive.

Assay procedure

1.  Dilute and add sample:Dilute Original density Standard as follow table:

2.add sample：Set blank wells separately (blankcomparison wells don’t add sample and HRP-Conjugate reagent, other each step operation is same). testingsample well. add Sample dilution 40μl to testing sample well,then add testing sample10μl (sample final dilution is 5-fold), add sample to wells , don’ttouch the well wall as far as possible, and Gently mix.

3.Incubate:After closing plate with Closure plate membrane ,incubate for 30 minat37℃.

4.Configurateliquid: 30-fold(or 20-fold) wash solutiondiluted 30-fold (or 20-fold) with distilled water and reserve.

5.washing：Uncover Closure platemembrane, discard Liquid, dry by swing, add washingbuffer to every well, still for 30s then drain, repeat 5 times, dry by pat.

6.add enzyme：Add HRP-Conjugatereagent 50μl to eachwell, except  blank well.

7.incubate：Operation with 3.

8.washing：Operation with 5.

9.color：AddChromogen Solution A 50ul andChromogen Solution B to eachwell, evade the light preservationfor 15 min at37℃

10.Stop thereaction：Add Stop Solution50μl to each well, Stop the reaction(the bluecolor change to yellow color).

11.assay：take blank well as zero ,Read absorbance at 450nm after Adding Stop Solution and within 15min.

Steps description

Calculate

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

Important notes

1. The kit takes out from the refrigerationenvironment should be balanced 15-30 minutes in the room temperature, ELISA plates coated if has not use up afteropened, the plate should be stored in Sealed bag.

2. washing buffer will Crystallization separation,it can be heated the water helps dissolve when dilute . Washing does not affectthe result.

3. add Sample with sampler Each step, And proofreadits accuracy frequently, avoids the experimental error. add sample within 5min, if the number of sample is much , recommend to use Volley .

4.  if thetesting material content is excessively higher (The sample OD is bigger than the firststandard well ),please dilute Sample (n-fold), Please diluente and multipliedby the dilution factor.（×n×5）.

5.  Closure plate membrane onlylimits the disposable use, to avoid cross-contamination.

6.  Thesubstrate evade the light preservation.

7.  Pleaseaccording to use instruction strictly, The test result determination must takethe microtiter plate reader as astandard.

8.  Allsamples, washing buffer and each kind of reject should according to infectivematerial process.

9.  Do not mix reagents with those fromother lots.

Storage and validity

1．Storage：  2-8℃.

2．validity： six months