Uncoated Human HBsAg(Hepatitis B surface antigen) ELISA Kit (E-UNEL-H0061)
Product Summary
The new series of Elabsciencee® Uncoated ELISA kits contain the basic components required for the ELISA experiments. For customers who have rich experience and can establish their own ELISA system, uncoated kit is an ideal choice to save costs.
| Detection Range | 0.31-20 ng/mL |
| Sample Volume | 100 μL |
| Total Assay Time | 24 h |
| Reactivity | Human |
| Specificity | This kit recognizes Human HBsAg in samples.No significant cross-reactivity or interference between Human HBsAg and analogues was observed |
| Recovery | 80%-120% |
| Sample Type | Serum, plasma and other biological fluids |
| Detection Method | Colorimetric method, ELISA, Sandwich |
| Assay Type | Sandwich-ELISA |
| Size | 96T*5 / 96T*15 |
| Storage | -20℃ |
| Expiration Date | 12 months |
Performance
| Typical data |
The following data was generated by the Quality Control Department, under controlled laboratory conditions (ambient temperature: 18-25 °C, relative humidity: 35-75%) using standardized procedures (TMB reaction at 37 °C in the dark for 15 minutes, followed by termination and OD measurement). These values are provided for reference only.
Actual results may vary due to differences in laboratory conditions, operator technique, and equipment. Users are required to generate a standard curve using their own experimental data.
|
Test Principle
This ELISA kit uses the Sandwich-ELISA principle. Prior to the assay, the plate must be coated with antibody specific for Human HBsAg. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human HBsAg and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human HBsAg, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human HBsAg. You can calculate the concentration of Human HBsAg in the samples by comparing the OD of the samples to the standard curve.
Background
Hepatitis B Virus (HBV) infection induces a disease state characterised by liver damage, inflammation and viral persistence. Infection also increases the risk of hepatocellular carcinoma. HBV belongs to the Hepadnaviridae family of viruses. Its genome consists of partially double stranded circular DNA. The DNA is enclosed in a nucleocapsid, or core antigen (HBcAg), which is surrounded by a spherical envelope (surface antigen or HBsAg). The core antigen shares its sequences with the e antigen (HBeAg) but no cross reactivity between the two proteins has been observed. The HBV genome also encodes a DNA polymerase that also acts as a reverse transcriptase. Hepatitis B infection is normally diagnosed from serological tests that detect HBsAg but as the disease progresses this antigen may no longer be present in the blood and tests for HBcAg are used. If HBsAg can be detected in the blood for longer than six months, chronic hepatitis B is diagnosed. The antigenic determinant of the protein moiety of the HBsAg determines specific characteristics of different serotypes and provides the basis of immunodetection. HBsAg has antigenic heterogeneity, specifically, two pairs of sub specific determinants, d无y and w无r allow the following combinations: adw, ayw, adr, ayr.
| Research Area | Microbiology |
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