Mouse ELISA Kits

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Product Details
Product Name in English:
Mouse FcεRⅡ/CD23(Receptor Ⅱ for the Fc Region of Immunoglobulin E) ELISA Kit
Species:
Mouse
Alternative Name:
FCER2, BLAST-2, CD23A, CLEC4J, FCE2, IGEBF, Fc epsilon RII
Uniport ID:
P20693
Assay Type:
Sandwich
Standard:
2000pg/mL
Sensitivity:
18.75 pg/mL
Detection Range:
31.25-2000pg/mL
Assay Time:
3.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples
Research:
Signal transduction;Metabolic pathway;
Test Principle:
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 FcεRⅡ/CD23. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to FcεRⅡ/CD23. 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 FcεRⅡ/CD23, 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 FcεRⅡ/CD23 in the samples is then determined by comparing the OD of the samples to the standard curve.
Technical Data
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
2000 2.326 2.337 2.332 2.284
1000 1.532 1.547 1.54 1.49
500 0.901 0.908 0.905 0.859
250 0.418 0.42 0.419 0.376
125 0.239 0.241 0.24 0.197
62.5 0.139 0.14 0.14 0.097
31.25 0.092 0.092 0.092 0.05
0 0.042 0.042 0.042 0
Linear
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 (%) 88-97 80-101 85-92
Average (%) 95 86 91
1:4 Range (%) 96-103 87-96 80-96
Average (%) 101 96 84
1:8 Range (%) 86-92 96-105 95-103
Average (%) 89 98 100
1:16 Range (%) 89-97 95-103 87-98
Average (%) 96 99 91
Precision
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
Rate of recovery
The recovery of spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
Sample Type Range(%) Average Recovery(%)
Serum (n=8) 80-96 87
EDTA plasma (n=8) 90-105 97
Cell culture media (n=8) 82-94 88
Assay Procedures
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