Summary:

 

Purpose

 

Our Quick Step Horse thyroxine (T4)ELISA Kit is to assay T4 levels in Horse 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 T4. 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 T4 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 T4 and HRP conjugated T4 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 T4. You can calculate the concentration of T4 in the samples by comparing the OD of the samples to the standard curve.

 

Typical Data

 

The standard curve of QS0013Ho 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	0ng/ml	0.044	0.0480
		0.052
S1	60ng/ml	1.999	1.9865
		1.974
S2	40ng/ml	1.302	1.3115
		1.321
S3	20ng/ml	0.687	0.6900
		0.693
S4	10ng/ml	0.392	0.3855
		0.379
S5	5ng/ml	0.202	0.2030
		0.204

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