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Human HBP(Heparin-Binding Protein) ELISA Kit
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ELK11782
Size： Price：
48 T $412.00
96 T $588.00
96 T*5 $2499.00
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Overview

Product name: Human HBP(Heparin-Binding Protein) ELISA Kit
Reactivity: Human
Alternative Names: AZU; AZAMP; AZU1; HBP; HUMAZUR; NAZC; CAP37; Cationic Antimicrobial Protein 37; Heparin-Binding Protein; Neutrophil Azurocidin
Assay Type: Sandwich
Sensitivity: 3.53 pg/mL
Standard: 1500 pg/mL
Detection Range: 23.44-1500 pg/mL
Sample Type: Serum
Assay Length: 3.5h
Research Area: Enzyme & Kinase;Infection immunity;
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 HBP. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human HBP. 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 HBP, 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 HBP 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
1500.00 2.328 2.242
750.00 1.642 1.556
375.00 1.243 1.157
187.50 0.883 0.797
93.75 0.493 0.407
46.88 0.329 0.243
23.44 0.208 0.122
0.00 0.086 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 HBP and the recovery rates were calculated by comparing the measured value to the expected amount of HBP in samples.
Matrix Recovery range Average
serum(n=5) 96-106% 101%
EDTA plasma(n=5) 93-106% 100%
Heparin plasma(n=5) 86-100% 93%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of HBP 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) 96-108% 78-87% 87-99% 79-87%
EDTA plasma(n=5) 94-106% 88-98% 94-106% 94-106%
Heparin plasma(n=5) 77-86% 79-86% 79-88% 79-93%