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434次使用前仔細閱讀本說明書。本酶聯(lián)免疫試劑盒是基于雙抗體夾心技術(shù)原理,來檢測人β淀粉樣蛋白1-40 (Aβ1-40),只能用于研究用途,不得用于醫(yī)學診斷。
用 途:用于人血清、血漿及相關(guān)液體樣本中β淀粉樣蛋白1-40 (Aβ1-40)測定。
工作原理
本試劑盒采用的是*雙抗體夾心酶聯(lián)免疫吸附法(ELISA)測定樣品中人β淀粉樣蛋白1-40 (Aβ1-40)水平。向預先包被了人β淀粉樣蛋白1-40 (Aβ1-40)單克隆抗體的酶標孔中加入人β淀粉樣蛋白1-40 (Aβ1-40),溫育;溫育后,加入*標記的抗β淀粉樣蛋白1-40 (Aβ1-40)抗體。再與鏈霉親和素-HRP結(jié)合,形成免疫復合物,再經(jīng)過溫育和洗滌,去除未結(jié)合的酶,然后加入底物A、B,產(chǎn)生藍色,并在酸的作用下轉(zhuǎn)化成zui終的黃色。顏色的深淺與樣品中人β淀粉樣蛋白1-40 (Aβ1-40)的濃度呈正相關(guān)。
試劑盒組成
試劑盒組成 | 48孔配置 | 96孔配置 | 保存 |
說明書 | 1份 | 1份 |
|
封板膜 | 2片(48) | 2片(96) |
|
密封袋 | 1個 | 1個 |
|
酶標包被板 | 1×48 | 1×96 | 2-8℃保存 |
標準品8000 pg/ml | 0.5ml×1瓶 | 0.5ml×1瓶 | 2-8℃保存 |
標準品稀釋液 | 3ml×1瓶 | 6ml×1瓶 | 2-8℃保存 |
鏈霉親和素-HRP | 3 ml×1瓶 | 6 ml×1瓶 | 2-8℃保存 |
*標記的抗β淀粉樣蛋白1-40 (Aβ1-40)抗體 | 0.5ml×1瓶 | 1 ml×1瓶 | 2-8℃保存 |
顯色劑A液 | 3 ml×1瓶 | 6 ml×1瓶 | 2-8℃保存 |
顯色劑B液 | 3 ml×1瓶 | 6 ml×1瓶 | 2-8℃保存 |
終止液 | 3ml×1瓶 | 6ml×1瓶 | 2-8℃保存 |
濃縮洗滌液 | (20ml×20倍)×1瓶 | (20ml×30倍)×1瓶 | 2-8℃保存 |
需要而未提供的試劑和器材
注意事項
洗板方法
手工洗板方法:甩掉酶標板內(nèi)的液體;在實驗臺上鋪墊幾層吸水紙,酶標板朝下用力拍幾次;將稀釋后的洗滌液至少0.35ml注入孔內(nèi),浸泡1-2分鐘。根據(jù)需要,重復此過程數(shù)次。
自動洗板:如果有自動洗板機,應在熟練使用后再用到正式實驗過程中
標本要求
1.不能檢測含NaN3的樣品,因NaN3抑制辣根過氧化物酶的(HRP)活性。
2.標本采集后盡早進行提取,提取按相關(guān)文獻進行,提取后應盡快進行實驗。若不能馬上進行試驗,可將標本放于-20℃保存,但應避免反復凍融。
操作程序
4000 pg/ml | 5號標準品 | 120μl的原倍標準品加入120μl標準品稀釋液 |
2000 pg/ml | 4號標準品 | 120μl的5號標準品加入120μl標準品稀釋液 |
1000pg/ml | 3號標準品 | 120μl的4號標準品加入120μl標準品稀釋液 |
500pg/ml | 2號標準品 | 120μl的3號標準品加入120μl標準品稀釋液 |
250pg/ml | 1號標準品 | 120μl的2號標準品加入120μl標準品稀釋液 |
操作程序總結(jié):
檢測范圍:100 pg/ml→4000 pg/ml。
保存:2-8℃。
有效期:6個月(2-8℃)。
Human Aβ1-40 ELISA Kit
Instruction
This kit is only for scientific research, and shall not be used as a clinical diagnosis of use.
Purpose
This kit allows for the determination of Aβ1-40 concentrations in Human serum, cell culture supernatant, and other biological fluids.
Principle The kit assay Human Aβ1-40 level in the sample,add Human Aβ1-40 antibody to microtiter plate wells, after Incubating,add Biotinylated anti –Aβ1-40 -antibody , then Combined Streptavidin-HRP, become complex, after Incubating and washing Compley, Add TMB substrate solution,TMB substrate becomes blue color, 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 Aβ1-40 in the samples is then determined by comparing the O.D. of the samples to the standard curve. Materials provided with the kit
Materials provided with the kit | 48determinations | 96 determinations | Storage |
User manual | 1 | 1 |
|
Closure plate membrane | 2 | 2 |
|
Sealed bags | 1 | 1 |
|
Microelisa stripplate | 1 | 1 | 2-8℃ |
Standard:8000 pg/ml | 0.5ml×1 bottle | 0.5ml×1 bottle | 2-8℃ |
Standard diluent | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
Streptavidin-HRP | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
Biotinylated anti – Aβ1-40 -antibody | 0.5ml×1 bottle | 1ml×1 bottle | 2-8℃ |
Chromogen Solution A | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
Chromogen Solution B | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
Stop Solution | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
wash solution | (20ml×20 fold) ×1bottle | (20ml×30 fold) ×1bottle | 2-8℃ |
Materials required but not supplied1. 37 ℃ incubator
2. Standard microplate reader(450nm)
3. Precision pipettes and Disposable pipette tips.
4. deionized water.
5. Disposable Test tube
6 Absorbent paper
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. add Sample with sampler Each step, And proofread its accuracy frequently, avoids the experimental error.
3. Please according to use instruction strictly, The test result determination must take the microtiter plate reader as a standard.
4. Use new disposal plastic pipette tips and Closure plate membrane for each standard, in order to avoid cross contamination.
5. Do not mix reagents with those from other lots.
6. The substrate evade the light preservation.
Specimen requirements
Assay procedure
4000 pg/ml | 5 Standard | 120μl Original density Standard+120μl Standard diluent |
2000 pg/ml | 4 Standard | 120μl 5 Standard+120μl Standard diluent |
1000pg/ml | 3 Standard | 120μl 4 Standard+120μl Standard diluent |
500pg/ml | 2 Standard | 120μl 3 Standard +120μl Standard diluent |
250pg/ml | 1 Standard | 120μl 2 Standard +120μl Standard diluent |
2. according testing Sample numbers to define how many wells nedd, Standard and blank suggested Do holes.
3.add sample:1) blank wells: (blank comparison wells don’t add sample , Biotinylated anti –Aβ1-40-antibody and Streptavidin-HRP ,other each step operation is same); 2) Standard wells: add Standard 50μl and Streptavidin-HRP 50μl; 3) testing Sample wells: add sample 40μl,then add anti –Aβ1-40 -antibody 10μl , Streptavidin-HRP 50μl. closing plate with Closure plate membrane ,incubate for 60 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.color:Add Chromogen Solution A 50ul and Chromogen Solution B to each well, evade the light preservation for 15 min at 37℃
7.Stop the reaction:Add Stop Solution50μl to each well, Stop the reaction(the blue color change to yellow color).
8.assay:take blank well as zero , Read absorbance at 450nm after Adding Stop Solution and within 10min.
9. Calculate of result
Steps description
Standard, Sample diluent |
Add Standard, Sample diluent, Biotinylated and HRP ,incubate for 60 min at 37℃. |
Wash 5 times,Add Chromogen Solution A and B, incubate for 15 min at 37℃. |
Add Stopp Solution |
Read absorbance at 450nm within 10 min |
calculate |
Assay range
100pg/ml→4000pg/ml
Storage and validity
1.Storage: 2-8℃.
2.validity: six months.
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