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- 详细信息
- 文献和实验
- 技术资料
- 样本：
液体
- 标记物：
Aflatoxin
- 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
黄qu霉毒素 ( Aflatoxin ) ELISA试剂盒
Sample collection and storages
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
Note: Standard concentration was followed by:
8、4、2、1、0.5、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
Sample collection and storages
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 |
8、4、2、1、0.5、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!
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 |
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。
- 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。
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
- 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。
风险提示：丁香通仅作为第三方平台，为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全，合理判断，谨慎选购商品，商家和用户对交易行为负责。对于医疗器械类产品，请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验相关实验
曲霉属黄曲霉产生的菌类毒素。 1960年英国在数月内约死掉十万只火鸡，经过研究证实，是由繁殖在花生粗粉饲料中的黄曲霉产生的毒素所致。用紫外线照射黄曲霉毒素，可发出青和绿的四种相类似的荧光物质，为了区别，分别称为 B1 、 B2 、 G1 、 G2 ，并明确了它们的化学结构。它也是引起肝脏病变的致癌物质。由于考虑到黄曲霉是日本酿造品中广泛使用的米曲霉的野生种，因而以曲霉属为中心，对该毒素的生产性进行了广泛的调查，虽有类似的物质，但经过对动物的实验，未能确定其毒性。此外，最初被鉴定
应用超高压液相-质谱联用技术同时测定花生及其制品中的六种黄曲霉毒素
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酸克伦特罗的浓度成反比。 2.2 ELISA用于饲料中毒素的测定 饲料中的毒素主要是由真菌产生的，主要包括黄曲霉毒素，简曲霉毒素等。运用ELISA能测定饲料中霉菌毒素的含量。以测定黄曲霉毒素为例，黄曲霉毒素是一组化学结构类似的化合物，目前已分离鉴定出12种。在我国饲料标准中黄曲霉毒素的含量通常以黄曲酶毒素B1 计，本文仅介绍竞争性ELISA间接法检测黄曲霉毒素B1 。目前ELISA试剂盒也广泛用于饲料中黄曲霉毒素B1 的测定。B1 抗原能与黄曲霉毒素B1 与载体蛋白的复合物竞争抗黄曲霉毒素
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黄qu霉毒素 ( Aflatoxin ) ELISA试剂盒
￥2800
