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![N/A CD21 [Biotin]](http://images.novusbio.com/fullsize2/CD21_DY490905_ELISA_2583.jpg "N/A CD21 [Biotin]")
![ELISA: Human CD21 ELISA Kit (Colorimetric) [NBP3-11783] - Samples were spiked with high concentrations of Human CD21 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-11783_human-cd21-elisa-kit-colorimetric-132202416221079.jpg "ELISA: Human CD21 ELISA Kit (Colorimetric) [NBP3-11783] - Samples were spiked with high concentrations of Human CD21 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Human CD21 ELISA Kit (Colorimetric) [NBP3-11783] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-11783_human-cd21-elisa-kit-colorimetric-432024973634.jpg)
![ELISA: Human CD21 ELISA Kit (Colorimetric) [NBP3-14628] - Example of Human CD21 Standard Curve.](http://images.novusbio.com/fullsize/Human-CD21-ELISA-Kit-Colorimetric-ELISA-NBP3-14628-img0001.jpg "ELISA: Human CD21 ELISA Kit (Colorimetric) [NBP3-14628] - Example of Human CD21 Standard Curve.")