Summary:

 

Purpose

 

Our Quick Step Human Dipeptidyl Peptidase (DPP)elisa Kit (Enzyme activity) is to assay DPP 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 DPP. 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 DPP 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 DPP and HRP conjugated DPP 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 DPP. You can calculate the concentration of DPP in the samples by comparing the OD of the samples to the standard curve.

 

Typical Data

 

The standard curve of QS3611Hu is provided for demonstration only. A standard curve should be generated for each set of samples assayed.

 

 

 

 

Standard	Concentration	OD Value	Average OD Value
Blank Well	0U/L	0.057	0.0550
		0.053
S1	240U/L	1.968	1.9635
		1.959
S2	160U/L	1.392	1.3385
		1.285
S3	80U/L	0.710	0.7190
		0.728
S4	40U/L	0.376	0.3855
		0.395
S5	20U/L	0.205	0.1990
		0.193

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