Purpose

Our Rat Prolyl Endopeptidase(PREP) ELISA Kit is to assay PREP levels in Rat serum, plasma, culture media or any biological fluid.

Principle

This ELISA kit uses Sandwich-ELISA as the method. The Micro Elisa strip plate provided in this kit has been pre-coated with an antibody specific to BK. Standards or samples are
added to the appropriate Micro Elisa strip plate wells and combined to the specific antibody. Then a Horseradish Peroxidase (HRP)-conjugated antibody specific for PREP is added to
each Micro Elisa strip plate well and incubated. Free components are washed away. The TMB substrate solution is added to each well. Only those wells that contain PREP and HRP
conjugated PREP 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 PREP. You can calculate the concentration of PREP in the samples by comparing the OD of the samples to
the standard curve.

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Rat PREP were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Rat PREP were tested on 3 different plates, 8 replicates in each plate.

CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%