Summary:

 

Purpose

 

Our Quick Step Human cytokeratin 19,CK-19 ELISA Kit is to assay CK-19 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 CK-19. 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 CK-19 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 CK-19 and HRP conjugated CK-19 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 CK-19. You can calculate the concentration of CK-19 in the samples by comparing the OD of the samples to the standard curve.

 

Typical Data

 

The standard curve of QS0586Hu 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	0单位	0.044	0.0480
		0.052
S1	150单位	1.967	1.9630
		1.959
S2	100单位	1.328	1.3195
		1.311
S3	50单位	0.692	0.7030
		0.714
S4	25单位	0.392	0.3875
		0.383
S5	12.5单位	0.197	0.1900
		0.183

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