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![ELISA: Human HBsAg ELISA Kit (Colorimetric) [NBP3-11804] - Samples were spiked with high concentrations of Human HBsAg and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-11804_human-hbsag-elisa-kit-colorimetric-132202416175645.jpg "ELISA: Human HBsAg ELISA Kit (Colorimetric) [NBP3-11804] - Samples were spiked with high concentrations of Human HBsAg and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Human HBsAg ELISA Kit (Colorimetric) [NBP3-11804] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-11804_human-hbsag-elisa-kit-colorimetric-4320249133282.jpg)
![ELISA: SARS-CoV-2 SARS-CoV-2 Spike RBD [NBP3-11407] - Sample standard curve](http://images.novusbio.com/fullsize/SARS-CoV-2-SARS-CoV-2-Spike-RBD-ELISA-NBP3-11407-img0001.jpg "ELISA: SARS-CoV-2 SARS-CoV-2 Spike RBD [NBP3-11407] - Sample standard curve")