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ELK Biotechnology

SKU(재고 관리 코드):ELK8065

Rat IgG2a(Immunoglobulin G2a) ELISA Kit

Rat IgG2a(Immunoglobulin G2a) ELISA Kit

Size
Sensitivity
Detection range

Rat IgG2a(Immunoglobulin G2a) ELISA Kit

Overview

Product name: Rat IgG2a(Immunoglobulin G2a) ELISA Kit
Reactivity: Rat
Alternative Names: IgG2a
Assay Type: Competitive Inhibition
Sensitivity: 96.3 ng/mL
Standard: 20000 ng/mL
Range: 312.5-20000 ng/mL
Sample Type: Serum, plasma and other biological fluids.
Assay Length: 2h
Research Area: Infection immunity;Immune molecule;Hematology;
Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Rat IgG2a protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat IgG2a. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 Rat IgG2a in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (ng/mL) OD Corrected OD
20000.00 0.199
10000.00 0.367
5000.00 0.577
2500.00 0.833
1250.00 1.197
625.00 1.578
312.50 1.775
0.00 2.115

Precision

Intra-assay Precision (Precision within an assay):CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays):CV%<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 IgG2a and the recovery rates were calculated by comparing the measured value to the expected amount of IgG2a in samples.
Matrix Recovery range Average
serum(n=5) 93-107% 100%
EDTA plasma(n=5) 87-95% 91%
Heparin plasma(n=5) 87-99% 88%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of IgG2a and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 78-92% 79-93% 78-90% 91-99%
EDTA plasma(n=5) 90-99% 83-97% 81-103% 89-101%
Heparin plasma(n=5) 89-97% 90-98% 80-93% 92-105%
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