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Summary:
Purpose
Our Quick Step Human growth differentiation factor 23 (GDF23)elisa Kit is to assay GDF23 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 GDF23. 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 GDF23 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 GDF23 and HRP conjugated GDF23 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 GDF23. You can calculate the concentration of GDF23 in the samples by comparing the OD of the samples to the standard curve.
Typical Data
The standard curve of QS3532Hu 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/L
0.044
0.0480
0.052
S1
60ng/L
1.999
1.9865
1.974
S2
40ng/L
1.302
1.3115
1.321
S3
20ng/L
0.687
0.6900
0.693
S4
10ng/L
0.392
0.3855
0.379
S5
5ng/L
0.202
0.2030
0.204
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