Summary:

 

Purpose

 

Our Quick Step Human Neuregulin 4,NRG-4 ELISA Kit is to assay NRG-4 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 NRG-4. 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 NRG-4 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 NRG-4 and HRP conjugated NRG-4 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 NRG-4. You can calculate the concentration of NRG-4 in the samples by comparing the OD of the samples to the standard curve.

 

Typical Data

 

The standard curve of QS3221Hu 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	0pg/ml	0.046	0.0435
		0.041
S1	24pg/ml	1.989	1.9925
		1.996
S2	16pg/ml	1.331	1.3420
		1.353
S3	8pg/ml	0.694	0.7025
		0.711
S4	4pg/ml	0.391	0.3865
		0.382
S5	2pg/ml	0.194	0.1975
		0.201

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