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- 详细信息
- 文献和实验
- 技术资料
- 灵敏度:
高
- 样本:
液体
- 标记物:
IL-1β
- 适应物种:
不限
- 应用:
科研单位
- 检测方法:
酶联免疫法
- 检测范围:
不限
- 供应商:
瓦兰生物
- 库存:
大量
- 规格:
96T
鱼类白介素1β ( IL-1β ) ELISA试剂盒
设计一个鱼类白介素1β (IL-1β) ELISA实验模型需要考虑多个方面,包括实验目的、样品来源、实验步骤、数据分析等。以下是一个详细的实验模型设计框架:
### 实验模型设计
#### 1. 实验目的
- **目标**:测定鱼类体内或细胞培养上清液中IL-1β的浓度,以评估其在免疫反应、炎症反应等生物学过程中的作用。
#### 2. 实验材料
- **试剂盒**:选择适用于鱼类IL-1β的ELISA试剂盒。
- **样品来源**:选择适合的鱼类(如斑马鱼、草鱼等),可从健康个体或感染个体中获取样品。
- **样品类型**:血清、组织匀浆或细胞培养上清液。
#### 3. 实验设计
- **组别设计**:
- **对照组**:健康鱼类样品。
- **实验组**:感染或处理过的鱼类样品(如细菌感染、药物处理等)。
- **样品数量**:每组至少3-5个生物重复,以确保结果的可靠性。
#### 4. 实验步骤
##### 4.1 样品准备
- 收集鱼类样品,使用无菌技术处理。
- 血清样品:通过静脉抽血获得,离心分离血清。
- 组织样品:取样后用生理盐水匀浆,离心收集上清液。
##### 4.2 ELISA实验步骤
1. **试剂准备**:
- 按照试剂盒说明书准备标准品和稀释液。
2. **加样**:
- 将样品、标准品和空白对照分别加入到ELISA板的孔中,通常每个样品至少做三次平行重复。
3. **孵育**:
- 在适宜的温度(如37°C)下孵育1-2小时,或根据说明书要求。
4. **洗涤**:
- 使用洗板机或手动洗涤,去除未结合的成分。
5. **加入检测抗体**:
- 加入酶标记的二抗,孵育并洗涤。
6. **底物反应**:
- 加入底物溶液,孵育至显色(通常15-30分钟)。
7. **停止反应**:
- 加入停止液,停止反应。
8. **结果读取**:
- 使用酶标仪读取吸光度(通常在450 nm波长下)。
##### 4.3 数据分析
- **标准曲线**:根据标准品的浓度和对应的吸光度值绘制标准曲线。
- **样品浓度计算**:根据样品的吸光度值与标准曲线进行浓度计算。
#### 5. 结果解释
- 比较不同组别中IL-1β的浓度差异,分析其在免疫反应中的作用。
#### 6. 注意事项
- 确保所有试剂和样品在操作前充分混匀。
- 操作过程中应佩戴适当的个人防护装备(如手套、口罩等)。
- 严格按照试剂盒说明书进行操作,以确保实验结果的准确性和可靠性。
### 总结
通过以上设计,能够有效地测定鱼类体内IL-1β的浓度,为后续的免疫学研究提供重要数据支持。实验的具体细节和步骤应根据所选试剂盒的说明书进行调整,以确保实验的成功和结果的可靠性。
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 | 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 |
注:标准品浓度依次为:8、4、2、1、0.5、0 ng/ml.
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
- 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。
- 自动洗板机:每孔注入洗液350μL,浸泡1min,洗板5次。
操作步骤
- 从室温平衡60min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℃。
- 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;
- 待测样本孔先加待测样本10μL,再加样本稀释液40μL;
- 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。
- 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)。
- 每孔加入底物A、B各50μL,37℃避光孵育15min。
- 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
- 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。
- 灵敏度:最低检测浓度小于0.1 ng/ml。
- 特异性:不与其它可溶性结构类似物交叉反应。
- 重复性:板内变异系数小于10%、板间变异系数小于15%。
- 贮藏:2-8℃,避光防潮保存。
- 有效期:6个月
免责声明
- 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。
- 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。
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
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 should be centrifugated adequately 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.
2. Do not remove microplate from the storage bag until needed. Unused strips should be stored at 2-8°C in their pouch with the desiccant provided.
3. Mix all reagents before using.
Remove all kit reagents from refrigerator and allow them to reach room temperature ( 20-25°C)
Materials supplied
| 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 |
20、10、5、2.5、1.25、0 ng/mL.
Reagent preparation
20×wash solution:Dilute with Distilled or deionized water 1:20.
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 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 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.
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
- 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.
- 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.
- 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.
- 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.
- The sensitivity by this assay is 0.1 ng/mL.
- Standard curve
Storage: 2-8℃.
validity: six months.
FOR RESEARCH USE ONLY; NOT FOR THERAPEUTIC OR DIAGNOSTIC APPLICATIONS! PLEASE READ THROUGH ENTIRE PROCEDURE BEFORE BEGINNING!
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