Summary:

 

Purpose

Our Quick Step Sheep Foot and Mouth Disease Virus type a (FMDV-A)elisa kit is to for the qualitative determination of PCVⅡ-Ab in Sheep serum, plasma, culture media or any biological fluid.

 

Principle

The ELISA is based on the the qualitative enzyme immunoassay technique.The Microplate provided in this kit has been pre-coated with an antibody specific to FMDV-A, make it to solid-phase antibody.Samples are added to the Microplate wells and combined to the specific antibody. Then a Horseradish Peroxidase (HRP)-conjugated antibody specific for FMDV-A is added to each Microplate well and incubated,so the antibody-antigen-Enzyme labeled antibody complex is formed.Following a wash to remove any unbound reagent,then the TMB substrate solution is added to each well. Only those wells that contain FMDV-A and HRP conjugated FMDV-A 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 qualitative determination of FMDV-A is determined by comparing with the CUT OFF value.

Determine the result
Test effectiveness: the average value of positive control ≥1.00; The average value of negative control ≤0.10. 
The critical value (CUT OFF) calculation: critical value = the average value of   negative control + 0.15
Negative judgement:if the OD value<CUT OFF, the sample is Sheep FMDV-A negative.
Positive judgement: if the OD value ≥CUT OFF,the sample is Sheep FMDV-A positive.

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