ELISA 检测试剂盒#人紧密连接蛋白（Occludin）ELISA 检测试剂盒的技术资料详细介绍#技术新闻

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ELISA 检测试剂盒#人紧密连接蛋白（Occludin）ELISA 检测试剂盒的技术资料详细介绍#技术新闻
据技术部4月25日15时01分透露：（ http://www.app17.com/c110001/products/d11342985.html）

试剂盒组成

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。

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	0.3mL	0.3mL	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

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. 设置标准品孔和样本孔，标准品孔各加不同浓度的标准品 50μL；

3. 待测样本孔先加待测样本 10μL，再加样本稀释液 40μL；

4. 随后标准品孔和样本孔中每孔加入辣根过氧化物酶（HRP）标记

注：标准品浓度依次为：800、400、200、100、50、0 ng/mL.

的检测抗体 100μL，用封板膜封住反应孔，37℃水浴锅或恒温箱温

试剂的准备

育 60min。

20×洗涤缓冲液的稀释：蒸馏水按 1：20 稀释，即 1 份的 20×洗涤

5. 弃去液体，吸水纸上拍干，每孔加满洗涤液，静置 1min，甩去

缓冲液加 19 份的蒸馏水。

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. 每孔加入底物 A、B 各 50μL，37℃避光孵育 15min。

7. 每孔加入终止液 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：**低检测浓度小于 1.0 ng/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：板内变异系数小于 10%、板间变异系数小于 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。

FOR RESEARCH USE ONLY.

NOT FOR USE IN DIAGNOSTIC PROCEDURES.

Human Occludin (Occludin) ELISA Kit instruction

Intended use

This Occludin 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 Occludin in the sample, this Occludin 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 Occludin concentration. The concentration of Occludin in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Sample collection and storages

Plasma - Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples for 30 minutes at 3000×g at 2-8℃ within 30 minutes of collection. Store samples at -20℃or -80℃. Avoid repeated freeze-thaw cycles.

Cell culture supernates and other biological fluids - Remove particulates

by centrifugation and assay immediately or aliquot and store samples at -20℃or

-80℃. Avoid repeated freeze-thaw cycles.

Note: The samples shoule be centrifugated dequately and no hemolysis

or granule was allowed.

Materials required but not supplied

1. Standard microplate reader(450nm)

2. Precision pipettes and Disposable pipette tips.

3. 37 ℃ incubator

Precautions

1. Do not substitute reagents from one kit to another. Standard, conjugate and microplates are matched for optimal performance. Use only the reagents supplied by manufacturer.

Serum - Use a serum separator tube and allow samples to clot for 30 minutes before centrifugation for 10 minutes at approximately 3000×g. Remove serum and assay immediately or aliquot and store samples at -20℃ or -80℃.Avoid repeated freeze-thaw cycles

2. Do not remove microplate from the storage bag until needed. Unused should be stored at 2-8°C in their pouch with the desiccant provided.

3. Mix all reagents before using.

strips

Remove all kit reagents from refrigerator ａnd allow them to reach room temperature ( 20-25°C)

Materials supplied

Assay procedure

1. Prepare all reagent s before starting assay procedure. It is recommended

all Standards and Samples be added in duplicate to the Microelisa Stripplate.

that

Name	96 determinations	48 determinations
Microelisa stripplate	12*8strips	12*4strips
Standard	0.3ml	0.3ml
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

2. Add standard: Set Standard wells, testing sample wells. Add standard 50μl to standard well.

3. Add Sample: Add testing sample 10μl Then add sample diluent 40μl to testing sample well; Blank well doesn’t add anyting.

4. Add 100μl of HRP-conjugate reagent to each well, cover with an adhesive strip ａnd incubate for 60 minutes at 37°C.

5. Aspirate each well ａnd wash, repeating the process four times for a total of five washes. Wash by filling each well with Wash Solution (400μl) using a squirt bottle, manifold dispenser or autowasher. Complete removal of liquid at each step is

Note: Standard concentration was followed by: 800、400、200、100、50、0 ng/mL.

Reagent preparation

essential to good performance. After the last wash, remove any remaining Wash Solution by aspirating or decanting. Invert the plate and blot it against clean paper towels.

20×wash solution:Dilute with Distilled or deionized water 1:20.

6. 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.

7. 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.

8. 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 (Y) axis versus the corresponding concentration on the horizontal (X) 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 zero standard 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. The sensitivity by this assay is 1.0 ng/mL.

6. Standard curve