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Human MIP3b(Macrophage Inflammatory Protein 3 Beta) ELISA Kit
ELK2181
Size： Price：
48 T $320.00
96 T $458.00
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Overview

Product name: Human MIP3b(Macrophage Inflammatory Protein 3 Beta) ELISA Kit
Reactivity: Human
Alternative Names: CCL19; CKb11; ELC; MIP3-B; SCYA19; Chemokine C-C-Motif Ligand 19; Beta Chemokine Exodus-3; CK Beta-11; EBI1-Ligand Chemokine; Small Inducible Cytokine Subfamily A19
Assay Type: Sandwich
Sensitivity: 6.5 pg/mL
Standard: 1000 pg/mL
Detection Range: 15.63-1000 pg/mL
Sample Type: serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length: 3.5h
Research Area: Cytokine;Infection immunity;
Uniprot ID: Q99731
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 Human MIP3b. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human MIP3b. 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 Human MIP3b, 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 Human MIP3b in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (pg/mL) OD Corrected OD
1000.00 2.266 2.198
500.00 1.631 1.563
250.00 1.135 1.067
125.00 0.847 0.779
62.50 0.508 0.440
31.25 0.357 0.289
15.63 0.225 0.157
0.00 0.068 0.000

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 MIP3b and the recovery rates were calculated by comparing the measured value to the expected amount of MIP3b in samples.
Matrix Recovery range Average
serum(n=5) 77-95% 86%
EDTA plasma(n=5) 94-106% 100%
Heparin plasma(n=5) 80-97% 88%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of MIP3b 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) 85-97% 87-96% 85-96% 85-95%
EDTA plasma(n=5) 86-95% 93-103% 87-98% 85-96%
Heparin plasma(n=5) 92-102% 81-93% 86-98% 91-103%