Summary:

Purpose

Our Quick Step Human microRNA-21 (miR-21)elisa Kit is to assay miR-21 levels in Human serum, plasma, culture media or any biological fluid.

Principle

This ELISA kit uses Sandwich-ELISA as the method. The Microelisa stripplate provided in this kit has been pre-coated with an antibody specific to miR-21. Standards or samples are added to the appropriate Microelisa stripplate wells and combined to the specific antibody. Then a Horseradish Peroxidase (HRP)- conjugated antibody specific for miR-21 is added to each Microelisa stripplate well and incubated. Free components are washed away. The TMB substrate solution is added to each well. Only those wells that contain miR-21 and HRP conjugated miR-21 antibody will appear blue in color and then turn yellow after the addition of the stop solution. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm. The OD value is proportional to the concentration of miR-21. You can calculate the concentration of miR-21 in the samples by comparing the OD of the samples to the standard curve.

Typical Data

The standard curve of QS3405Hu is provided for demonstration only. A standard curve should be generated for each set of samples assayed.