AFP iClia

Intended Use

AFP iClia is intended for the in vitro quantitative measurement of alpha fetoprotein (AFP) in human serum/plasma. This kit is only operational with J.Mitra CLIA Analyzer.

Salient Features

• Based on Sandwich chemiluminescent microparticle immunoassay
• Acridinium Ester (AE) based kit for more accurate results
• Test result at 30 minutes
• Analytical sensitivity : 0.05 IU/ml
• Linearity: 0.05 IU/ml to 1000.0 IU/ml
• Long shelf life: 12 months at 2-8^oC
• Onboard stability of reagents: 30 days at 2-8^oC
• Convenient pack size: 50 Test Pack
• Prompt service back-up

Principle

AFP iClia kit is a chemiluminescent based on “Sandwich principle”. The magnetic microparticles are coated with anti-AFP IgG antibodies. The samples are added in the assay cup containing assay buffer and anti-AFP IgG antibodies coated microspheres followed by addition of AE conjugate (anti-AFP IgG labeled acridinium ester conjugate) to assay cup. A sandwich complex is formed wherein AFP (from serum/plasma sample) is “trapped” or “sandwiched” between the microspheres coated antibody and antibody labelled with AE conjugate. Unbound conjugate is then washed off with the wash buffer. The amount of bound AE conjugate is proportional to the concentration of AFP present in the sample. Finally pre-trigger and trigger solution containing hydrogen peroxide and sodium hydroxide solution is added to reaction mixture. The resulting chemiluminescent reaction is measured as relative light units (RLUs). There is a direct relationship between the amount of AFP present in the sample and RLUs detected by the optical system. Results are calculated automatically based on the established calibration curve.

Performance Characteristics

Limit of Blank (LoB) : < 0.40 IU/mL

Accuracy: The accuracy of AFP iClia was detected with 30 clinical specimens and compared with Roche CLIA. The co-relation co-efficient is >0.990.

Precision:

1. The test results are repeatable with Alpha Fetoprotein (AFP) samples (Low and High) and kit controls in within run precision testing with CV <15%.
2. The test results are reproducible with Alpha Fetoprotein (AFP) samples (Low and High) and kit controls in between run precision testing with CV <15%.
3. The test results are reproducible with Alpha Fetoprotein (AFP) (Low and High) and kit controls in between instrument precision testing with CV <10%.

Ordering Information