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Cattle IGFBP6(Insulin Like Growth Factor Binding Protein 6) ELISA Kit
ELK5935
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48 T $412.00
96 T $588.00
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Overview

Product name: Cattle IGFBP6(Insulin Like Growth Factor Binding Protein 6) ELISA Kit
Reactivity: Cattle
Alternative Names: IBP6; IGF-binding protein 6
Assay Type: Sandwich
Sensitivity: 0.94 ng/mL
Standard: 160 ng/mL
Detection Range: 2.5-160 ng/mL
Sample Type: Serum, plasma and other biological fluids.
Assay Length: 3.5h
Research Area: Tumor immunity;Endocrinology;
Uniprot ID: Q05718
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 Cattle IGFBP6. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Cattle IGFBP6. 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 Cattle IGFBP6, 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 Cattle IGFBP6 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
160.00 2.135 2.054
80.00 1.572 1.491
40.00 1.107 1.026
20.00 0.835 0.754
10.00 0.453 0.372
5.00 0.426 0.345
2.50 0.187 0.106
0.00 0.081 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 IGFBP6 and the recovery rates were calculated by comparing the measured value to the expected amount of IGFBP6 in samples.
Matrix Recovery range Average
serum(n=5) 79-93% 86%
EDTA plasma(n=5) 90-105% 97%
Heparin plasma(n=5) 86-99% 92%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of IGFBP6 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) 87-96% 91-101% 87-98% 89-103%
EDTA plasma(n=5) 89-99% 83-96% 98-104% 88-101%
Heparin plasma(n=5) 92-101% 82-98% 89-97% 85-93%