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![ELISA: Universal Free Thyroxine ELISA Kit (Colorimetric) [NBP3-18006] - Samples were spiked with high concentrations of Free Thyroxine and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-18006_universal-free-thyroxine-elisa-kit-colorimetric-132202416235750.jpg "ELISA: Universal Free Thyroxine ELISA Kit (Colorimetric) [NBP3-18006] - Samples were spiked with high concentrations of Free Thyroxine and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Universal Free Thyroxine ELISA Kit (Colorimetric) [NBP3-18006] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-18006_universal-free-thyroxine-elisa-kit-colorimetric-432024855099.jpg)
![ELISA: Rat Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60000] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.](http://images.novusbio.com/fullsize/Rat-Free-Thyroxine-ELISA-Kit-Colorimetric-ELISA-NBP2-60000-img0001.jpg "ELISA: Rat Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60000] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.")
![Rat Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60000] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60000_rat-free-thyroxine-elisa-kit-colorimetric-3120248343422.png)
![ELISA: Mouse Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60001] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.](http://images.novusbio.com/fullsize/Mouse-Free-Thyroxine-ELISA-Kit-Colorimetric-ELISA-NBP2-60001-img0001.jpg "ELISA: Mouse Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60001] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.")
![Mouse Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60001] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60001_mouse-free-thyroxine-elisa-kit-colorimetric-3120248485445.png)
![Fish Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60004] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60004_fish-free-thyroxine-elisa-kit-colorimetric-3120248315913.png "Fish Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60004] - Standard Curve Reference")
![Porcine Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60008] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60008_porcine-free-thyroxine-elisa-kit-colorimetric-3120248485424.png "Porcine Free Thyroxine ELISA Kit (Colorimetric) [NBP2-60008] - Standard Curve Reference")