法氏囊病毒（BDV）抗体ELISA试剂盒说明书

法氏囊病毒（BDV）抗体ELISA试剂盒说明书

本试剂仅供研究使用       目的：本试剂盒用于测定鸡血清，血浆及相关液体样本中法氏囊病毒（BDV）抗体的含量。

实验原理：

    本试剂盒应用双抗原夹心法测定标本中鸡法氏囊病毒（BDV）抗体水平。用纯化的鸡法氏囊病毒（BDV）抗原包被微孔板，制成固相抗原，往包被抗原的微孔中依次加入法氏囊病毒（BDV）抗体，再与HRP标记的法氏囊病毒（BDV）抗原结合，形成抗原-抗体-酶标抗体原复合物，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zui终的黄色。颜色的深浅和样品中的法氏囊病毒（BDV）抗体呈正相关。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鸡法氏囊病毒（BDV）抗体浓度。

试剂盒组成：

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，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*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zui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。

10. 如与英文说明书有异，以英文说明书为准。

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。

试剂盒性能：

1.样品线性回归与预期浓度相关系数R值为0.92以上。

2.批内与批见应分别小于9%和15%

保存条件及有效期：

1.试剂盒保存：2-8℃。

2．有效期：6个月

FOR RESEARCH USE ONLY

Drug Names

Generic Name：chicken Bursal Disease Virus antibody （Bdv-Ab） ELISA Kit.

Purpose

This kit allows for the determination of Bdv-Ab concentrations in chicken serum, blood plasma, and other biological fluids.

Principle of the assay

The kit assay chicken Bdv-Ab level in the sample，use Purified chicken Bdv-Ab antigen to coat microtiter plate wells, make solid-phase antigen, then add Bdv-Ab to wells, Combined Bdv-Ab antigen which With HRP labeled , become antigen - antibody - enzyme-antibody complex, after washing Compley, Add TMB substrate solution,TMB substrate becomes blue color At HRP enzyme-catalyzed, reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. The concentration of Bdv-Ab in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Materials provided with the kit

Specimen requirements

1.       serum- coagulation at room temperature 10-20 mins，centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant, If precipitation appeared, Centrifugal again.

2.       plasma-use suited EDTA or citrate plasma as an anticoagulant,mix 10-20 mins ,centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant, If precipitation appeared, Centrifugal again.

3.       Urine-collect sue a sterile container, centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant, If precipitation appeared, Centrifugal again. The Operation of Hydrothorax and cerebrospinal fluid Reference to it.

4.       cell culture supernatant-detect secretory components, collect sue a sterile container, centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant,detect the composition of cells, Dilut cell suspension with PBS（PH7.2-7.4）, Cell concentration reached 1 million / ml, repeated freeze-thaw cycles, damage cells and release of intracellular components, centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant, If precipitation appeared, Centrifugal again.

5.       Tissue samples- After cutting samples, check the weight,add PBS（PH7.2-7.4）, Rapidly frozen with liquid nitrogen, maintain samples at 2-8℃ after melting,add PBS（PH7.4）, Homogenized by hand or Grinders, centrifugation 20-min at the speed of 2000-3000 r.p.m. remove supernatant.

6.       extract as soon as possible after Specimen collection,and according to the relevant literature, and should 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.

7.       Can’t detect the sample which contain NaN3, because NaN3 inhibits HRP active.

Assay procedure

1.Dilute and add sample to Standard: set 10 Standard wells on the ELISA plates coated, add Standard 100μl to the first and the second well, then add Standard dilution 50μl to the first and the second well, mix; take out 100μl form the first and the second well then add it to the third and the forth well separay. then add Standard dilution 50μl to the third and the forth well ,mix ; then take out 50μl from the third and the forth well discard, add 50μl to the fifth and the sixth well ,then add Standard dilution 50μl to the fifth and the sixth well, mix ; take out 50μl from the fifth and the sixth well and add to the seventh and the eighth well, then add Standard dilution 50μl to the seventh and the eighth well ,mix ; take out 50μl from the seventh and the eighth well and add to the ninth and the tenth well, add Standard dilution 50μl to the ninth and the tenth well, mix , take out 50μl from the ninth and the tenth well discard（add Sample 50μl to each well after Diluting ,（density: 12ng/L,8ng/L ,4ng/L,2ng/L, 1ng/L）

2.add sample：Set blank wells separay （blank comparison wells don’t add sample and HRP-Conjugate reagent, other each step operation is same）. testing sample well. add Sample dilution 50μl to testing sample well, then add testing sample 10μl （sample final dilution is 5-fold）, add sample to wells , don’t touch the well wall as far as possible, and Gently mix.

3.Incubate: After closing plate with Closure plate membrane ,incubate for 30 min at 37℃.

4.Configurate liquid: 30-fold （or 20-fold）wash solution diluted 30-fold （or 20-fold） with distilled water and reserve.

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

6.add enzyme：Add HRP-Conjugate reagent 50μl to each well, except  blank well.

7.incubate：Operation with 3.

8.washing：Operation with 5.

9.color：Add Chromogen Solution A 50ul and Chromogen Solution B to each well, evade the light preservation for 15 min at 37℃

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

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

Important notes

1.       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.

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

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

4.       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）.

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

6.       The substrate evade the light preservation.

7.       Please according to use instruction strictly, The test result determination must take the microtiter plate reader as a standard.

8.       All samples, washing buffer and each kind of reject should according to infective material process.

9.       Do not mix reagents with those from other lots.

Storage and validity

1．Storage：  2-8℃.

2．validity： six months.