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大鼠白细胞介素6 elisa试剂盒 英文说明书

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 大鼠白细胞介素6  elisa试剂盒 英文说明书

Principle of the assay

The kit assay RatIL-6 level in the sample,use Purified RatIL-6 antibody to coat microtiter plate wells, make solid-phase antibody, then addIL-6 to wells,CombinedIL-6 antibody which With HRP labeled,become antibody - antigen - enzyme-antibody complex, after washing Completely,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 RatIL-6 in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Assay procedure

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

 

120pg/ml
5 Standard
150μl Original density Standard+150μl Standard diluent
60pg/ml
4 Standard
150μl 5 Standard+150μl Standard diluent
30pg/ml
3 Standard
150μl 4 Standard+150μl Standard diluent
15pg/ml
2 Standard
150μl 3 Standard +150μl Standard diluent
7.5pg/ml
1 Standard
150μl 2 Standard +150μl Standard diluent

 

2.add sample:Set blank wells separately (blank comparison wells don’t add sample and HRP-Conjugate reagent, other each step operation is same). testing sample well. add Sample dilution 40μl to testing sample well, then add testing sample 10μl (sample final dilution is 5-fold), add sample towells , 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, discardLiquid, 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 min, 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 diluenteand 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.

 

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