IL-6, ELISA

The DIAsource IL-6-ELISA is a solid phase Enzyme Amplified Sensitivity Immunoassay performed on microtiterplate.

The assay uses monoclonal antibodies (MAbs) directed against distinct epitopes of IL-6.

Calibrators and samples react with the capture monoclonal antibody (MAb 1) coated on microtiter well and with a monoclonal antibody (MAb 2) labelled with horseradish peroxidase (HRP).

After an incubation period allowing the formation of a sandwich: coated MAb 1 – human IL-6 – MAb 2 – HRP, the microtiterplate is washed to remove unbound enzyme labelled antibody.

Bound enzyme-labelled antibody is measured through a chromogenic reaction.

Chromogenic solution (TMB) is added and incubated.

The reaction is stopped with the addition of Stop Solution and the microtiterplate is then read at the appropriate wavelength.

The amount of substrate turnover is determined colourimetrically by measuring the absorbance, which is proportional to the IL-6 concentration.

A calibration curve is plotted and IL-6 concentration in samples is determined by interpolation from the calibration curve.

The use of the ELISA reader (linearity up to 3 OD units) and a sophisticated data reduction method (polychromatic data reduction) result in a high sensitivity in the low range and in an extended calibration range.

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For registration requirements in countries outside of European market, please contact regulatory.affairs@diasource.be.