Mini Samples ELISA Kit for Interleukin 15 (IL15)
- Product No.MEA061Mu
- Organism SpeciesMus musculus (Mouse) Same name, Different species.
- All
- Human
- Mouse
- Rat
- Cavia
- Rabbit
- Simian
- Caprine
- Ovine
- Equine
- Bovine
- Porcine
- Gallus
- Canine
- Others
- Multi-species
- Pan-species
- Test MethodDouble-antibody Sandwich
- Assay Length3h
- Detection Range15.6-1,000pg/mL
- SensitivityThe minimum detectable dose of this kit is typically less than 5.9pg/mL.
- Sample TypeSerum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- DownloadInstruction Manual
- UOM48T96T96T*596T*1096T*100
- FOBUS$ 545 For more details, please contact local distributors!US$ 778 For more details, please contact local distributors!US$ 3501 For more details, please contact local distributors!US$ 6613 For more details, please contact local distributors!US$ 54460 For more details, please contact local distributors!
Specificity of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
This assay has high sensitivity and excellent specificity for detection of Mini Samples Interleukin 15 (IL15).No significant cross-reactivity or interference between Mini Samples Interleukin 15 (IL15) and analogues was observed.
Recovery of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
Matrices listed below were spiked with certain level of recombinant Mini Samples Interleukin 15 (IL15) and the recovery rates were calculated by comparing the measured value to the expected amount of Mini Samples Interleukin 15 (IL15) in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 94-101 | 97 |
| EDTA plasma(n=5) | 87-104 | 94 |
| heparin plasma(n=5) | 82-101 | 90 |
Precision of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Mini Samples Interleukin 15 (IL15) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Mini Samples Interleukin 15 (IL15) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 Intra-Assay: CV<10%>10%>Inter-Assay: CV<12%>12%>
Linearity of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Mini Samples Interleukin 15 (IL15) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
| Sample | 1:2 | 1:4 | 1:8 | 1:16 |
| serum(n=5) | 80-104% | 94-104% | 78-101% | 82-93% |
| EDTA plasma(n=5) | 88-96% | 91-98% | 84-96% | 95-102% |
| heparin plasma(n=5) | 98-105% | 88-96% | 93-102% | 84-96% |
Stability of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
Assay procedure summary of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
1. Prepare all reagents, samples and standards;2. Add 25µL standard or sample to each well. Incubate 1 hour at 37°C;3. Aspirate and add 25µL prepared Detection Reagent A. Incubate 1 hour at 37°C;4. Aspirate and wash 3 times;5. Add 25µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;6. Aspirate and wash 5 times;7. Add 25µL Substrate Solution. Incubate 10-20 minutes at 37°C;8. Add 20µL Stop Solution. Read at 450nm immediately.
Test principle of the Mini Samples ELISA Kit for Interleukin 15 (IL15)
The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Mini Samples Interleukin 15 (IL15). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Mini Samples Interleukin 15 (IL15). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Mini Samples Interleukin 15 (IL15), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Mini Samples Interleukin 15 (IL15) in the samples is then determined by comparing the O.D. of the samples to the standard curve.
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Related products
| Catalog No. | Organism species: Mus musculus (Mouse) | Applications (RESEARCH USE ONLY!) |
| RPA061Mu02 | Recombinant Interleukin 15 (IL15) | Positive Control; Immunogen; SDS-PAGE; WB. |
| RPA061Mu01 | Recombinant Interleukin 15 (IL15) | Positive Control; Immunogen; SDS-PAGE; WB. |
| PAA061Mu01 | Polyclonal Antibody to Interleukin 15 (IL15) | WB; IHC; ICC; IP. |
| PAA061Mu02 | Polyclonal Antibody to Interleukin 15 (IL15) | WB; IHC; ICC; IP. |
| LAA061Mu71 | Biotin-Linked Polyclonal Antibody to Interleukin 15 (IL15) | WB; IHC; ICC. |
| LAA061Mu81 | FITC-Linked Polyclonal Antibody to Interleukin 15 (IL15) | WB; IHC; ICC; IF. |
| SEA061Mu | ELISA Kit for Interleukin 15 (IL15) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| MEA061Mu | Mini Samples ELISA Kit for Interleukin 15 (IL15) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| KSA061Mu01 | ELISA Kit DIY Materials for Interleukin 15 (IL15) | Main materials for "Do It(ELISA Kit) Yourself" |
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在这种测定方法中有3种必要的试剂:①固相的抗原或抗体(免疫吸附剂) ②酶标记的抗原或抗体(标记物)③酶作用的底物(显色剂)
测量时,抗原(抗体)先结合在固相载体上,但仍保留其免疫活性,然后加一种抗体(抗原)与酶结合成的偶联物(标记物),此偶联物仍保留其原免疫活性与酶活性,当偶联物与固相载体上的抗原(抗体)反应结合后,再加上酶的相应底物,即起催化水解或氧化还原反应而呈颜色。
其所生成的颜色深浅与欲测的抗原(抗体)含量成正比。 这种有色产物可用肉眼、光学显微镜、电子显微镜观察,也可以用分光光度计(酶标仪)加以测定。其方法简单,方便迅速,特异性强。向左转|向右转
大家好,我在做双抗夹心法的elisa实验,已经花了20来天了,然而标准曲线的线性一直做不好,而且不稳定。下面我把具体的实验过程说下,希望大家能给我提个建议,谢谢!
首先我从以下数据中确定了标准品的起始稀释浓度:4.64,46.4,464,4640IU/ml对应的OD为0.55,1.178,1.086,1.168.因此我取46.4IU/ml(300ng/ml)作为标品的起始稀释浓度。然后作了关于单抗,多抗,二抗的合适稀释度的实验,我的数据如下:
123456789
空白0.2290.1920.2120.1540.1390.1730.2360.1770.257
46.4iu/ml1.2421.5271.2691.9641.6281.9592.0051.8802.163
9.28iu/ml0.9680.9501.0131.1360.8731.2461.6971.5861.769
阴性0.1920.1760.2500.1310.1610.1540.1990.2190.244
选取了7号组合单抗,多抗,二抗分别为1ug/ml,1ug/ml,0.5ug/ml。
标品按照以下梯度稀释:46.423.211.65.82.91.450.725iu/ml.以下是我近来做的三组数据,都是相对空白的相对值:
123
46.4iu/ml0.6130.5860.851
23.20.5240.6490.765
11.60.3820.510.663
5.80.3160.3850.567
2.90.2880.3190.37
1.450.2890.1340.303
0.7250.1210.1460.113
空白0.0820.0870.101
阴性0.0820.1050.101
似乎梯度都不明显。我现在疑惑的是我的标品浓度的设置有问题还是之前抗体的浓度选择不合适,请大家多指点,万分感谢!!!
1、重复性不好;
2、收自身抗体、嗜异性抗体等干扰,易出现假阳性;
3、不论仪器和手工操作,干扰因素较多。影响最大的是温度和时间。1、直接法(direct ELISA)将抗原直接固定在固相载体上,参加酶符号的一级抗体,即可测定抗原总量,此一级抗体的特异性非常重要。优势:操作手续简略,因无须运用二抗可防止交互反响。缺陷:实验中的一抗都得用酶符号,但不是每种抗体都适合做符号,费用相对进步。2.间接法(indirect ELISA)此测定办法与直接法相似,不一样在于一级抗体没有酶符号,改用酶符号的二级抗体去辨识一级抗体来测定抗原量。优势:二抗能够加强信号,并且有多种挑选能做不一样的测定剖析。不加酶符号的一级抗体则能保存它最多的免疫反响性。缺陷:交互反响发作的机率较高。3.双抗体夹心法(sandwich ELISA)被检测的抗原包被在两个抗体之间,其间一个抗体将抗原固定于固相载体上,即捕捉抗体。另一个则是检测抗体,此抗体可用酶符号后直接测定抗原的量;或不符号,再透过酶符号的二级抗体来测定抗原的量。这两种抗体有必要当心选择,才可防止交互反响或竞争一样的抗原联系部位。优势:高活络、高专一性,抗原无须事前纯化。缺陷:抗原必定得具有两个以上的抗体联系部位。4.竞争法(competitive ELISA)样本里的抗原(自在抗原)和纯化并固定在固相载体上的抗原(固定抗原)一同竞争一样的抗体,当样品里的自在抗原越多,就能够联系越多的抗体,而固定抗原就只能联系到较少的抗体,反之亦然。经清洁过程,洗去自在抗原和抗体的复合物,只留下固定抗原和抗体的复合物,拿来与只要固定抗原的对照组成果相比拟,依据呈色区别就可计算出样品里的抗原含量。优势:可适用比拟不纯的样本,并且数据再现性很高。缺陷:全体的敏感性和专一性都较差。本数据来源于百度地图,最终结果以百度地图最新数据为准。
(一)双抗体夹心法
(二)间接法
(三)竞争法
(四)双位点一步法
(五)捕获法测IgM抗体
(六)应用亲和素和生物素的ELISA
1. 包被:用0.05M PH9,碳酸盐包被缓冲液将抗体稀释至蛋白质含量为1~10μg/ml,在每个聚苯乙烯板的反应孔中加0.1ml,4℃过夜。次日,弃去孔内溶液,用洗涤缓冲液洗3次,每次3分钟。
2. 加样:加一定稀释的待检样品0.1ml于上述已包被之反应孔中,置37℃孵育1小时。然后洗涤。(同时做空白孔,阴性对照孔及阳性对照孔)。
3. 加酶标抗体:于各反应孔中,加入新鲜稀释的酶标抗体(经滴定后的稀释度)0.1ml,37℃孵育0.5~1小时,洗涤。
4. 加底物液显色:于各反应孔中加入临时配制的TMB底物溶液0.1ml,37℃10~30分钟。
5. 终止反应:于各反应孔中加入2M硫酸0.05ml。
6. 结果判定:可于白色背景上,直接用肉眼观察结果:反应孔内颜色越深,阳性程度越强,阴性反应为无色或极浅,依据所呈颜色的深浅,以“+”、“-”号表示。也可测OD值:在ELISA检测仪上,于450nm(若以ABTS显色,则410nm)处,以空白对照孔调零后测各孔OD值,若大于规定的阴性对照OD值的2.1倍,即为阳性。
方法二:用于检测未知抗体的间接法:
用包被缓冲液将已知抗原稀释至1~10μg/ml,每孔加0.1ml,4℃过夜。次日洗涤3次。加一定稀释的待检样品(未知抗体)0.1ml于上述已包被之反应孔中,置37℃孵育1小时,洗涤。(同时做空白、阴性及阳性孔对照)于反应孔中,加入新鲜稀释的酶标第二抗体(抗抗体)0.1ml,37℃孵育30~60分钟,洗涤,最后一遍用DDW洗涤。其余步骤同“双抗体夹心法”的4、5、6。
1. 直接法测定抗原 2.间接法测定抗体 3.双抗体夹心法测定抗原4. 竞争法测定抗原 厚百生物专业提供各类生化实验试剂、仪器、耗材,提供技术服务,满足您的实验室常规采购需求。厚百,让您更省心!


