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發(fā)布時間:2014-05-21
猴結(jié)核桿菌抗體(TB-Ab)酶聯(lián)免疫分析(ELISA)
試劑盒使用說明書
本試劑僅供研究使用 目的:本試劑盒用于測定猴血清,血漿及相關(guān)液體樣本中結(jié)核桿菌抗體(TB-Ab)水平。
實驗原理:
本試劑盒采用雙抗原夾心酶聯(lián)免疫法(ELISA)測定標本中猴結(jié)核桿菌抗體(TB-Ab)水平。用純化的結(jié)核桿菌抗原包被微孔板,制成固相抗原,可與樣品中結(jié)核桿菌抗體(TB-Ab)相結(jié)合,經(jīng)洗滌除去未結(jié)合的抗體和其他成分后,再與HRP標記的結(jié)核桿菌抗原結(jié)合,形成抗原-抗體-酶標抗原復(fù)合物,經(jīng)過*洗滌后加底物TMB顯色。TMB在HRP酶的催化下轉(zhuǎn)化成藍色,并在酸的作用下轉(zhuǎn)化成zui終的黃色。用酶標儀在450nm波長下測定吸光度(OD值),與CUTOFF值相比較,從而判定標本中猴結(jié)核桿菌抗體(TB-Ab)的存在與否。
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 |
| 陰性對照 | 0.5ml×1瓶 | 0.5ml×1瓶 | 2-8℃保存 |
| 陽性對照 | 0.5ml×1瓶 | 0.5ml×1瓶 | 2-8℃保存 |
| 酶標試劑 | 3 ml×1瓶 | 6 ml×1瓶 | 2-8℃保存 |
| 樣品稀釋液 | 3 ml×1瓶 | 6 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 |
樣本處理及要求:
1. 血清:室溫血液自然凝固10-20分鐘,離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清,保存過程中如出現(xiàn)沉淀,應(yīng)再次離心。
2. 血漿:應(yīng)根據(jù)標本的要求選擇EDTA或檸檬酸鈉作為抗凝劑,混合10-20分鐘后,離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清,保存過程中如有沉淀形成,應(yīng)該再次離心。
3. 尿液:用無菌管收集,離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清,保存過程中如有沉淀形成,應(yīng)再次離心。胸腹水、腦脊液參照實行。
4. 細胞培養(yǎng)上清:檢測分泌性的成份時,用無菌管收集。離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清。檢測細胞內(nèi)的成份時,用PBS(PH7.2-7.4)稀釋細胞懸液,細胞濃度達到100萬/ml左右。通過反復(fù)凍融,以使細胞破壞并放出細胞內(nèi)成份。離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清。保存過程中如有沉淀形成,應(yīng)再次離心。
5. 組織標本:切割標本后,稱取重量。加入一定量的PBS,PH7.4。用液氮迅速冷凍保存?zhèn)溆?。標本融化后仍然保?-8℃的溫度。加入一定量的PBS(PH7.4),用手工或勻漿器將標本勻漿充分。離心20分鐘左右(2000-3000轉(zhuǎn)/分)。仔細收集上清。分裝后一份待檢測,其余冷凍備用。
6. 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(yīng)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(yīng)避免反復(fù)凍融.
7. 不能檢測含NaN3的樣品,因NaN3抑制辣根過氧化物酶的(HRP)活性。
操作步驟:
結(jié)果判定:
試驗有效性:陽性對照孔平均值≥1.00; 陰性對照平均值≤0.15
臨界值(CUT OFF)計算:臨界值=陰性對照孔平均值+0.20
陰性判定:樣品OD值< 臨界值(CUT OFF)者為猴結(jié)核桿菌抗體(TB-Ab)陰性
陽性判定:樣品OD值≥ 臨界值(CUT OFF)者為猴結(jié)核桿菌抗體(TB-Ab)陽性
注意事項
1.操作嚴格按照說明書進行,本試劑不同批號組分不得混用。
2.試劑盒從冷藏環(huán)境中取出應(yīng)在室溫平衡15-30分鐘后方可使用,酶標包被板開封后如未用完,板條應(yīng)裝入密封袋中保存。
3.濃洗滌液可能會有結(jié)晶析出,稀釋時可在水浴中加溫助溶,洗滌時不影響結(jié)果。
5.底物請避光保存。
6.試驗結(jié)果判定必須以酶標儀讀數(shù)為準,使用雙波長檢測時,參考波長為630nm
7.所有樣品,洗滌液和各種廢棄物都應(yīng)按傳染物處理。終止液為2M的硫酸,使用時必須注意安全。
保存條件及有效期
1.試劑盒保存:;2-8℃。
2.有效期:6個月
FOR RESEARCH USE ONLY
| Monkey tubercle bacillus antibody |
Drug Names
Generic Name:Monkey tubercle bacillus antibody (TB-Ab)ELISA Kit.
Purpose
This kit allows for the determination of TB-Ab in Monkey serum, and other biological fluids.
Principle of the assay
The kit assay Monkey TB-Ab level in the sample,use Purified TB antigen to coat microtiter plate wells, make solid-phase antigen, then add TB-Ab to wells, Combined With TB-Ab, after washing and removing non-combinative antibody and other components ,then Combined TB antigen which with HRP labeled become antigen - antibody - enzyme- antigen 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. Compared with the CUTOFF value, according to this to judge TB-Ab exist in the sample or not.
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℃ |
| Negative control | 0.5ml×1 bottle | 0.5ml×1 bottle | 2-8℃ |
| Positive control | 0.5ml×1 bottle | 0.5ml×1 bottle | 2-8℃ |
| HRP-Conjugate reagent | 3ml×1 bottle | 6ml×1 bottle | 2-8℃ |
| Sample diluent | 3ml×1 bottle | 6ml×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℃ |
Specimen requirements
Assay procedure
1.Number: to sample correspond microtitration well and Number Sequence, each plate should be set feminine comparison 2 wells, masculine comparison 2 wells, blank comparison 1 well(don’t add sample and HRP-Conjugate reagent to blank comparison well, other each step the operation are same).
2.add sample:separay add Positive control and Negative control 50μl to the Positive and Negative well . add Sample dilution 40μl to testing sample well, then add testing sample 10μl. add sample to the bottom of ELISA plates coated well , 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 until 600ml,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 50μlto each well, except the 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.
Determine the result
Test validity: the average of Positive control well≥1.00; the average of Negative control well ≤0.15.
Calculate Critical(CUT OFF) : Critical= the average of Negative control well + 0.20.
Negative control: sample OD< Calculate Critical(CUT OFF) is TB-Ab Negative control.
Positive control: ample OD≥ Calculate Critical(CUT OFF) is TB-Ab Positive control.
Important notes
1.Please according to use instruction strictly, Do not mix reagents with those from other lots.
2.The kit takes out from the refrigeration environment should be balanced 15-30 minutes in the room temperature then use, ELISA plates coated if has not use up after opened, the plate should be stored in Sealed bag.
3.washing buffer will Crystallization separation, it can be heated the water helps dissolve when dilute . Washing does not affect the result.
4.Closure plate membrane only limits the disposable use, in order to avoid the overlapping pollution
5.The substrate please evade the light preservation.
6.The test result determination must take the microtiter plate reader as a standard, when use dual-wavelength to assay, Reference wavelength is 630nm.
7.All samples, washing buffer and each kind of reject should according to infective material process. Stopp Solution is 2M sulphuric acid. You must pay attention to safe when use .
Storage and validity
1.Storage: 2-8℃.
2.validity: six months.
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