大豆凝集素（SBA）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：本試劑盒用于測定植物組織，細胞及其它相關樣本中大豆凝集素（SBA）含量。

實驗原理：

   本試劑盒應用雙抗體夾心法測定標本中大豆凝集素（SBA）水平。用純化的大豆凝集素（SBA）抗體包被微孔板，制成固相抗體，往包被單抗的微孔中依次加入大豆凝集素（SBA），再與HRP標記的大豆凝集素（SBA）抗體結合，形成抗體-抗原-酶標抗體復合物，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。顏色的深淺和樣品中的大豆凝集素（SBA）呈正相關。用酶標儀在450nm波長下測定吸光度（OD值），通過標準曲線計算樣品中大豆凝集素（SBA）濃度。

試劑盒組成：

標本要求：

1．標本采集后盡早進行提取，提取按相關文獻進行，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

2．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：

1.         標準品的稀釋與加樣：在酶標包被板上設標準品孔10孔，在*、第二孔中分別加標準品100μl，然后在*、第二孔中加標準品稀釋液50μl，混勻；然后從*孔、第二孔中各取100μl分別加到第三孔和第四孔，再在第三、第四孔分別加標準品稀釋液50μl，混勻；然后在第三孔和第四孔中先各取50μl棄掉，再各取50μl分別加到第五、第六孔中，再在第五、第六孔中分別加標準品稀釋液50ul，混勻；混勻后從第五、第六孔中各取50μl分別加到第七、第八孔中，再在第七、第八孔中分別加標準品稀釋液50μl，混勻后從第七、第八孔中分別取50μl加到第九、第十孔中，再在第九第十孔分別加標準品稀釋液50μl，混勻后從第九第十孔中各取50μl棄掉。（稀釋后各孔加樣量都為50μl，濃度分別為600ng/L，400ng/L ，200ng/L，100ng/L， 50ng/L）。

2.         加樣：分別設空白孔（空白對照孔不加樣品及酶標試劑，其余各步操作相同）、待測樣品孔。在酶標包被板上待測樣品孔中先加樣品稀釋液40μl，然后再加待測樣品10μl（樣品zui終稀釋度為5倍）。加樣將樣品加于酶標板孔底部，盡量不觸及孔壁，輕輕晃動混勻。

3.         溫育：用封板膜封板后置37℃溫育30分鐘。

4.         配液：將30（48T的20倍）倍濃縮洗滌液用蒸餾水30（48T的20倍）倍稀釋后備用。

5.         洗滌：小心揭掉封板膜，棄去液體，甩干，每孔加滿洗滌液，靜置30秒后棄去，如此重復5次，拍干。

6.         加酶：每孔加入酶標試劑50μl，空白孔除外。

7.         溫育：操作同3。

8.         洗滌：操作同5。

9.         顯色：每孔先加入顯色劑A50μl，再加入顯色劑B50μl，輕輕震蕩混勻，37℃避光顯色15分鐘.

10.     終止：每孔加終止液50μl，終止反應（此時藍色立轉(zhuǎn)黃色）。

11.     測定：以空白空調(diào)零，450nm波長依序測量各孔的吸光度（OD值）。 測定應在加終止液后15分鐘以內(nèi)進行。

注意事項：

1．  試劑盒從冷藏環(huán)境中取出應在室溫平衡15-30分鐘后方可使用，酶標包被板開封后如未用完，板條應裝入密封袋中保存。

2．  濃洗滌液可能會有結晶析出，稀釋時可在水浴中加溫助溶，洗滌時不影響結果。

3．  各步加樣均應使用加樣器，并經(jīng)常校對其準確性，以避免試驗誤差。一次加樣時間控制在5分鐘內(nèi)，如標本數(shù)量多，推薦使用排槍加樣。

4．  請每次測定的同時做標準曲線，做復孔。如標本中待測物質(zhì)含量過高（樣本OD值大于標準品孔*孔的OD值），請先用樣品稀釋液稀釋一定倍數(shù)（n倍）后再測定，計算時請zui后乘以總稀釋倍數(shù)（×n×5）。

5．  封板膜只限一次性使用，以避免交叉污染。

6．  底物請避光保存。

7．  嚴格按照說明書的操作進行，試驗結果判定必須以酶標儀讀數(shù)為準.

8．  所有樣品，洗滌液和各種廢棄物都應按傳染物處理。

9．  本試劑不同批號組分不得混用。

10. 如與英文說明書有異，以英文說明書為準。

計算：

以標準物的濃度為橫坐標，OD值為縱坐標，   

在坐標紙上繪出標準曲線，根據(jù)樣品的OD      

值由標準曲線查出相應的濃度；再乘以稀釋      

倍數(shù)；或用標準物的濃度與OD值計算出標      

準曲線的直線回歸方程式，將樣品的OD值      

代入方程式，計算出樣品濃度，再乘以稀釋      

倍數(shù)，即為樣品的實際濃度。                  

（此圖僅供參考）

試劑盒性能：

1.樣品線性回歸與預期濃度相關系數(shù)R值為0.95以上。

2.批內(nèi)與批見應分別小于9%和11%

檢測范圍：                                             

30ng/L -700ng/L

保存條件及有效期：

1.試劑盒保存：；2-8℃。

2．有效期：6個月

Plant soybean agglutinin（SBA）

Drug Names

Generic Name：Plant soybean agglutinin（ SBA） ELISA Kit.

Purpose

This kit allows for the determination of SBA concentrations in Plant tissue ,cell and other samples.

Principle of the assay

The kit assay Plant SBA level in the sample，use Purified Plant SBA antibody to coat microtiter plate wells, make solid-phase antibody, then add SBA to wells, Combined SBA antibody which With HRP labeled,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 SBA 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.       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.

2.       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: 600ng/L，400ng/L ，200ng/L，100ng/L， 50ng/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 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 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.

Assay range

30ng/L -700ng/L

Storage and validity

1．Storage：  2-8℃.

2．validity： six months.

/