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Chicken TNFa(Tumor Necrosis Factor Alpha) ELISA Kit

Chicken TNFa(Tumor Necrosis Factor Alpha) ELISA Kit

 
Catalog #
EKEL19999CK
Species
Chicken
Sensitivity
3.9 pg/mL
Assay Range
7.82-500 pg/mL
Sample type(s)
Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
 
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 Catalog #AvailabilitySizeQuantityUnit Price Save For Later Wish List
EKEL19999CK-96 2 weeks 96T $735.00
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EKEL19999CK-48 2 weeks 48T $515.00
EKEL19999CK-96x5 2 weeks 96T*5 $3,125.00
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Product Overview

NameChicken TNFa(Tumor Necrosis Factor Alpha) ELISA Kit
Reaction Duration3.5h
Target SpeciesChicken
ReactivityChicken
Sensitivity3.9 pg/mL
Assay Range7.82-500 pg/mL
Assay typeSandwich
Sample type(s)Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Other Names
DIF; TNF-A; TNFSF2; Cachectin; Tumor Necrosis Factor Ligand Superfamily Member 2
Principle of the Assay
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 Chicken TNFa. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Chicken TNFa. 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 Chicken TNFa, 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 Chicken TNFa in the samples is then determined by comparing the OD of the samples to the standard curve.
Standard Curve
Concentration (pg/mL)ODCorrected OD
500.001.8981.817
250.001.5271.446
125.000.9960.915
62.500.7270.646
31.250.4680.387
15.630.3150.234
7.820.2360.155
0.000.0810.000
Standard curve: The concentration of TNFa (pg/mL) plotted against Corrected OD.
Precision
AssayCVMethod
Intra-assay (precision within an assay)< 8%Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay (precision between assays)< 10%Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.
Recovery

Matrices listed below were spiked with certain level of recombinant TNFa and the recovery rates were calculated by comparing the measured value to the expected amount of TNFa in samples.

MatrixRecovery rangeAverage
Serum (n=5)80-97%88%
EDTA plasma (n=5)95-108%101%
Heparin plasma (n=5)83-97%90%
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