人ELISA试剂盒

人轴突生长诱向因子4(Ntn4)酶联免疫吸附测定试剂盒
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货号

FY-EH3845

样本类型

Serum, Plasma, Tissue homogenate and Other biological samples

检测时间

3.5H

价格(美元)

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产品详情
英文名称:
Human Ntn4(Netrin 4) ELISA Kit
种属:
Human
别称:
Beta-netrin, Hepar-derived netrin-like protein
Uniport ID:
Q9HB63
检测方法:
Sandwich
标准品:
5000pg/mL
灵敏度:
46.88 pg/mL
检测范围:
78.13-5000pg/mL
反应时间:
3.5H
样品类型:
Serum, Plasma, Tissue homogenate and Other biological samples
研究领域:
Cytokine;Infection immunity;
测试原理:
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 Ntn4. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Ntn4. 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 Ntn4, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Ntn4 in the samples is then determined by comparing the OD of the samples to the standard curve.
技术数据
As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.
Concentration OD1 OD2 Average OD Corrected
5000 2.504 2.526 2.515 2.435
2500 1.648 1.663 1.656 1.579
1250 0.982 0.984 0.983 0.913
625 0.463 0.464 0.464 0.394
312.5 0.254 0.256 0.255 0.185
156.25 0.156 0.157 0.157 0.087
78.13 0.104 0.105 0.105 0.035
0 0.069 0.07 0.07 0
精密度
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level were tested on 3 different plates, 20 replicates in each plate, respectively.
Item Intra-assay Precision Intra-assay Precision
Sample 3 3
Replicate 9 18
CV(%) 5 8
回收率
The recovery of spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
样本类型 Range(%) Average Recovery(%)
Serum (n=8) 84-96 90
EDTA plasma (n=8) 96-107 101
Cell culture media (n=8) 87-99 92
线性
Samples were spiked with high concentrations of target proteins and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2 Range (%) 93-106 88-98 95-103
Average (%) 103 94 95
1:4 Range (%) 87-99 87-103 80-97
Average (%) 92 92 91
1:8 Range (%) 85-93 89-97 93-102
Average (%) 88 92 97
1:16 Range (%) 80-96 85-94 87-103
Average (%) 95 91 96
检测流程图
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