Rat          IL-1β 
FOR RESEARCH USE ONLY 
 
Assay range: :: :1 ng/L -40 ng/L                                  96 determinations 
Purpose 
This  kit  allows  for  the  determination  of  IL-1βconcentrations  in  Rat  serum,  cell 
culture supernates and other biological fluids 
 
Principle of the assay 
The  kit assay Rat  IL-1β  level  in  the  sample, use Purified Rat  IL-1β  antibody  to  coat 
microtiter  plate wells, make  solid-phase  antibody,  then  add  IL-1β  to wells, Combined  IL-1β 
antibody which With HRP  labeled goat anti-Rat become antibody - antigen - 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 Rat  IL-1β  in  the samples  is  then determined by comparing  the O.D. of 
the samples to the standard curve. 
Materials provided with the kit 
1  wash    solution  20ml×1bottle  7  Stop Solution  6ml×1 bottle 
2  HRP-Conjugate reagent  6ml×1 bottle  8  Standard(80ng/L)   0.5ml×1 bottle 
3  Microelisa stripplate  12well×8strips  9  Standard diluent  1.5ml×1bottle 
4  Sample diluent  6ml×1 bottle  10  Instruction  1 
5  Chromogen Solution A  6ml×1 bottle  11 
Closure plate 
membrane 
2 
6  Chromogen Solution B  6ml×1 bottle  12  Sealed bags  1 
Specimen requirements 
1.  extract  as  soon  as  possible  after  Specimen  collection,and  according  to  the  relevant  
  2 
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. 
2.  Can’t detect the sample which contain NaN3, because NaN3 inhibits HRP active. 
Assay procedure 
1.  Dilute and add sample:Dilute Original density Standard as follow table: 
40ng/L 
5 Standard  150µl Original density Standard+150µl Standard diluent 
20ng/L 
4 Standard  150µl 5 Standard+150µl Standard diluent 
10ng/L 
3 Standard  150µl 4 Standard+150µl Standard diluent 
5ng/L 
2 Standard  150µl 3 Standard +150µl Standard diluent 
2.5ng/L 
1 Standard  150µl 2 Standard +150µl Standard diluent 
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  40µl  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 10 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.  
  3 
Steps description 
Standard, Sample diluent 
 
 
Add Standard, Sample diluent, incubate for 30 min at 37℃. 
 
 
Wash 5 time,Add HRP-Conjugate reagent, incubate for 30 min at 37℃. 
 
 
Wash 5 times,Add Chromogen Solution A and B, incubate for 10 min at 37℃. 
 
 
Add Stopp Solution 
 
 
Read absorbance at 450nm within 15 min 
 
 
calculate 
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  
  4 
sample OD value in the equation, calculate the sample density, multiplied by the dilution factor, 
the result is the sample actual density. 
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 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 
 
     試劑盒是我們公司主營產品,公司是成了了專門的技術部門。以下是我們對客戶的承諾:
1.有質量問題免費包換,合同上注明了的.(質量問題包括運輸不當,客戶在使用過程中測不出結果,等等!)
2.全程技術指導。(包括售前的標本收集,使用過程中不明白的地方,實驗結束后的數據分析,有任何疑問,我們技術都會即時給你去電)
3.提供免費代測的服務。(你只需把標本寄過來,我們為你節省時間,幫你出結果,原始數據,分析數據均可提供,一般時間是5天左右)
4.客戶有任何問題,我們都是在一個工作日之內給出解決方案。售后和技術這一塊都是竭誠為客戶服務
上海恒遠生物科技有限公司專業提供各類elisa酶聯免疫試劑盒,種屬齊全,標本多樣!歡迎廣大科研用戶朋友,來電來函!