人抑制素B（INH-B）ELISA检测试剂盒

【资料简介】

 

Rat GOT ELISA Kit

For the quantitative in vitro determination of Rat Aspartate aminotransferase concentrations in

 serum - plasma - celiac fluid - tissue homogenate - body fluid

 

 

 

 

 

 

 

FOR LABORATORY RESEARCH USE ONLY.

NOT FOR USE IN DIAGNOSTIC PROCEDURES.

 

 

This package insert must be read in its entirety before using this product.

 

ELISA

ENZYME LINKED IMMUNOSORBENT ASSAY

INTENDED USE AND TEST PRINCIPLE

This GOT ELISA kit is intended Laboratory for Research use only and is not for use in diagnostic or therapeutic procedures. The Stop Solution changes the color from blue to yellow and the intensity of the color is measured at 450 nm using a spectrophotometer. In order to measure the concentration of GOT in the sample, this GOT ELISA Kit includes a set of calibration standards. The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus GOT concentration. The concentration of GOT in the samples is then determined by comparing the O.D. of the samples to the standard curve.

 

SAMPLE COLLECTION AND STORAGES

Serum - Use a serum separator tube and allow samples to clot for 2 hours at room temperature or overnight at 4℃ before centrifugation for 20 minutes at approximay 2000×g. Remove serum and assay immediay or aliquot and store samples at -20℃. Avoid repeated freeze-thaw cycles

Plasma - Collect plasma using heparin as an anticoagulant. Centrifuge samples for 30 minutes at 2000×g at 2-8℃ within 30 minutes of collection. Store samples at -20℃. Avoid repeated freeze-thaw cycles.

Cell culture supernates, tissue homogenate and other biological fluids - Remove particulates by centrifugation and assay immediay or aliquot and store samples at -20℃. Avoid repeated freeze-thaw cycles.

Note:  The samples shoule be centrifugated dequay and no hemolysis or granule was allowed.

 

MATERIALS REQUIRED BUT NOT SUPPLIED

1.  37 ℃ incubator

2.  Standard microplate reader capable of measuring absorbance at 450 nm

3.  Precision pipettes, disposable pipette tips and Absorbent paper

4.  Distilled or deionized water

 

REAGENTS PROVIDED

All reagents provided are stored at 2-8°C. Refer to the expiration date on the label.

 

Name	96 determinations	48 determinations
Microelisa stripplate	12*8strips	12*4strips
Standard（6 vial）	0.5ml/vial	0.5ml/vial
Sample diluent	6.0ml	3.0ml
HRP-Conjugate reagent	10.0ml	5.0ml
20X Wash solution	25ml	15ml
Chromogen Solution A	6.0ml	3.0ml
Chromogen Solution B	6.0ml	3.0ml
Stop Solution	6.0ml	3.0ml
Closure plate membrane	2	2
User manual	1	1
Sealed bags	1	1

Note:

1.  Standard concentration was followed by: 480、240、120、60、30、15 U/L

2.  If samples generate values higher than the highest standard, please dilute the samples with Sample Diluent and repeat the assay.

 

PRECAUTIONS

1. Do not substitute reagents from one kit lot to another. Standard, conjugate and microtiter plates are matched for optimal performance. Use only the reagents supplied by manufacturer.
2. Allow kit reagents and materials to reach room temperature (20-25°C) before use. Do not use water baths to thaw samples or reagents.
3. Do not use kit components beyond their expiration date.
4. Use only deionized or distilled water to dilute reagents.
5. Do not remove microtiter plate from the storage bag until needed. Unused strips should be stored at 2-8°C in their pouch with the desiccant provided.
6. Use fresh disposable pipette tips for each transfer to avoid contamination.
7. Do not mix acid and sodium hypochlorite solutions.
8. Serum and plasma should be handled as potentially hazardous and capable of transmitting disease. Disposable gloves must be worn during the assay procedure, since no known test method can offer complete assurance that products derived from Rat blood will not transmit infectious agents. Therefore, all blood derivatives should be considered potentially infectious and good laboratory practices should be followed.
9. All samples should be disposed of in a manner that will inactivate viruses.
10. Liquid Waste: Add sodium hypochlorite to a final concentration of 1.0%. The waste should be allowed to stand for a minimum of 30 minutes to inactivate the viruses before disposal.
11. Substrate Solution is easily contaminated. If bluish prior to use, do not use.
12. Substrate B contain 20% acetone, keep this reagent away from sources of heat or flame.
13. Remove all kit reagents from refrigerator and allow them to reach room temperature ( 20-25°C).

 

REAGENT PREPARATION AND STORAGE

Wash Solution (1X) - Dilute 1 volume of Wash solution (20X) with 19 volumes of deionized or distilled water. Wash Solution is stable for 1 month at 2-8°C.

 

ASSAY PROCEDURE

1.  Prepare all reagents before starting assay procedure. It is recommended that all Standards and Samples be added in duplicate to the Microelisa Stripplate.

2.  Add 50μl of Standard or Sample to the appropriate wells. Blank well doesn’t add anyting.

3.  Add 100μl of HRP-conjugate reagent to standard wells and sample wells except the blank well, cover with an adhesive strip and incubate for 60 minutes at 37°C.

4.  Wash the Microtiter Plate 4 times.

Manual Washing - Remove incubation mixture by aspirating contents of the plate into a sink or proper waste container. Using a squirt bottle, fill each well compley with Wash Solution (1X), then aspirate contents of the plate into a sink or proper waste container. Repeat this procedure for a total of four times. After final wash, invert plate, and blot dry by hitting plate onto absorbent paper or paper towels until no moisture appears. Note: Hold the sides of the plate frame firmly when washing the plate to assure that all strips remain securely in frame.

Automated Washing - Aspirate all wells, then wash plates four times using Wash Buffer (1X). Always adjust your washer to aspirate as much liquid as possible and set fill volume at 350μL/well/wash. After final wash, invert plate, and blot dry by hitting plate onto absorbent paper or paper towels until no moisture appears.

5.  Add chromogen solution A 50μl and chromogen solution B 50μl to each well. Gently mix and incubate for 15 minutes at 37°C. Protect from light.

6.  Add 50μl Stop Solution to each well. The color in the wells should change from blue to yellow. If the color in the wells is green or the color change does not appear uniform, gently tap the plate to ensure thorough mixing.

7.  Read the Optical Density (O.D.) at 450 nm using a microtiter plate reader within 15 minutes.

 

CALCULATION OF RESULTS

1. This standard curve is used to determine the amount in an unknown sample. The standard curve is generated by plotting the average O.D. (450 nm) obtained for each of the six standard concentrations on the vertical (X) axis versus the corresponding concentration on the horizontal (Y) axis.
2. First, calculate the mean O.D. value for each standard and sample. All O.D. Values are subtracted by the mean value of the balnk well before result interpretation. Construct the standard curve using graph paper or statistical software.
3. To determine the amount in each sample, first locate the O.D. value on the Y-axis and extend a horizontal line to the standard curve. At the point of intersection, draw a vertical line to the X-axis and read the corresponding concentration.
4. Any variation in operator, pipetting and washing technique, incubation time or temperature, and kit age can cause variation in result. Each user should obtain their own standard curve.
5. Intra-assay CV(%) and Inter-assay CV（％）are less than 15%.
6. Assay range: 15 U/L –480 U/L.

7.  Sensitivity: The minimum detectable dose of Rat GOT is typically less than 10 U/L

8.  Cross-reactivity: This assay recognizes recombinant and natural Rat GOT. No significant cross-reactivity or interference was observed.

9.  Storage: 2-8℃ (Use frequently); six months (-20℃)。

10.  Standard curve

本试剂盒只能用于科学研究，不得用于医学诊断

人抑制素B（INH-B）ELISA检测试剂盒

使用说明书

检测原理

试剂盒采用双抗体一步夹心法酶联免疫吸附试验（ELISA）。往预先包被人抑制素B（INH-B）捕获抗体的包被微孔中，依次加入标本、标准品、HRP标记的检测抗体，经过温育并*洗涤。用底物TMB显色，TMB在过氧化物酶的催化下转化成蓝色，并在酸的作用下转化成zui终的黄色。颜色的深浅和样品中的人抑制素B（INH-B）呈正相关。用酶标仪在450nm 波长下测定吸光度（OD 值），计算样品浓度。

样品收集、处理及保存方法

1.  血清：使用不含热原和内毒素的试管，操作过程中避免任何细胞刺激，收集血液后，3000转离心10分钟将血清和红细胞迅速小心地分离。

2.  血浆：EDTA、柠檬酸盐或肝素抗凝。3000转离心30分钟取上清。

3.  细胞上清液：3000转离心10分钟去除颗粒和聚合物。

4.  组织匀浆：将组织加入适量生理盐水捣碎。3000转离心10分钟取上清。

5.  保存：如果样本收集后不及时检测，请按一次用量分装，冻存于-20℃，避免反复冻融，在室温下解冻并确保样品均匀地充分解冻。

自备物品

1. 酶标仪（450nm）
2. 高精度加样器及枪头：0.5-10uL、2-20uL、20-200uL、200-1000uL
3. 37℃恒温箱

操作注意事项

1.   试剂盒保存在2-8℃，使用前室温平衡20分钟。从冰箱取出的浓缩洗涤液会有结晶，这属于正常现象，水浴加热使结晶*溶解后再使用。
2.   实验中不用的板条应立即放回自封袋中，密封（低温干燥）保存。
3.   预处理后的样本无需稀释，直接取50μL加样即可。
4.   严格按照说明书中标明的时间、加液量及顺序进行温育操作。
5.   所有液体组分使用前充分摇匀。

试剂盒组成

名称	96孔配置	48孔配置	备注
微孔酶标板	12孔×8条	12孔×4条	无
标准品（6管）	0.5ml/管	0.5mL/管	无
样本稀释液	6mL	3mL	无
检测抗体-HRP	10mL	5mL	无
20×洗涤缓冲液	25mL	15mL	按说明书进行稀释
底物A	6mL	3mL	无
底物B	6mL	3mL	无
终止液	6mL	3mL	无
封板膜	2张	2张	无
说明书	1份	1份	无
自封袋	1个	1个	无

注：

1、标准品浓度依次为：96、48、24、12、6、3 pg/mL.

2、在样本值超过标准品zui高浓度的情况下，可用样本稀释液适当稀释样本。

试剂的准备

 20×洗涤缓冲液的稀释：蒸馏水按1：20稀释，即1份的20×洗涤缓冲液加19份的蒸馏水。

洗板方法

1.   手工洗板：甩尽孔内液体，每孔加满洗涤液，静置1min后甩尽孔内液体，在吸水纸上拍干，如此洗板5次。
2.   自动洗板机：每孔注入洗液350μL，浸泡1min，洗板5次。

操作步骤

1.   从室温平衡20min后的铝箔袋中取出所需板条，剩余板条用自封袋密封放回4℃。
2.   设置标准品孔、样本孔和空白孔，空白孔什么都不加；标准品孔各加不同浓度的标准品50μL；
3.   待测样本孔各加待测样本50μL；
4.   随后标准品孔和样本孔中（空白孔不加）加入辣根过氧化物酶（HRP）标记的检测抗体100μL，，用封板膜封住反应孔，37℃水浴锅或恒温箱温育60min。
5.   弃去液体，吸水纸上拍干，每孔加满洗涤液，静置1min，甩去洗涤液，吸水纸上拍干，如此重复洗板5次（也可用洗板机洗板）。
6.   所有孔加入底物A、B各50μL，37℃避光孵育15min。
7.   所有孔加入终止液50μL，15min内，在450nm波长处测定各孔的OD值。

结果判断

 绘制标准曲线：在Excel工作表中，以标准品浓度作横坐标，对应OD值作纵坐标，绘制出标准品线性回归曲线，按曲线方程计算各样本浓度值。

试剂盒性能

1.  准确性：标准品线性回归与预期浓度相关系数R值，大于等于0.9900。

2.  灵敏度：zui低检测浓度小于1.0 pg/mL。

3.  特异性：不与其它可溶性结构类似物交叉反应。

4.  重复性：板内、板间变异系数均小于15%。

5.  贮藏：2-8℃，避光防潮保存。

6.  有效期：6个月

免责声明

1.   试剂盒仅供研究使用，不得用于临床实验或人体实验，否则所产生的一切后果，由实验者承担，本公司概不负责。

2.   严格按照说明书操作，实验者违反说明书操作，后果由实验者承担。