ELISA Kits
ELISA (Enzyme linked immunosorbent assay) Kits are ideal for the quantification of target antigens in tissue extracts, serum, and cell culture. We offer the most published, highly rated, and trusted R&D Systems ELISA Kits on the market, known for their superior quality, high sensitivity, and reproducibility. Novus has Quantikine ELISA Kits for measuring intra- and extracellular proteins, in addition to DuoSet ELISA Kits which contain matched antibody pairs and provide design flexibility. Our ELISA Kits are available in a range of assay formats including indirect, sandwich, and competitive ELISAs and, depending on your research needs, are suitable for either colorimetric or chemiluminescent detection. Browse our catalog of 5000+ ELISA Kits by searching for specific proteins or targets, species reactivity, kit types, reviews, and publications to choose the best product to meet your research goals.
Alternate Names for ELISA Kits
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![N/A TNF-alpha [Biotin]](http://images.novusbio.com/fullsize2/DATA_TNFalpha_DY2279_ELISA_1803.jpg "N/A TNF-alpha [Biotin]")
![N/A IL-6 [Biotin]](http://images.novusbio.com/fullsize2/DATA_IL6_DY8190_ELISA_2241.jpg "N/A IL-6 [Biotin]")
![N/A IFN-gamma [Biotin]](http://images.novusbio.com/fullsize2/DATA_IFNgamma_DY2300_ELISA_1805.jpg "N/A IFN-gamma [Biotin]")
![N/A IL-2 [Biotin]](http://images.novusbio.com/fullsize2/DATA_IL2_DY2465_ELISA_1833.jpg "N/A IL-2 [Biotin]")
![ELISA: Bovine Progesterone ELISA Kit (Colorimetric) [NBP2-60122] - 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/Bovine-Progesterone-ELISA-Kit-Colorimetric-ELISA-NBP2-60122-img0001.jpg "ELISA: Bovine Progesterone ELISA Kit (Colorimetric) [NBP2-60122] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.")
![Bovine Progesterone ELISA Kit (Colorimetric) [NBP2-60122] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60122_bovine-progesterone-elisa-kit-colorimetric-312024848549.png)
![ELISA: Bovine, Sheep Cortisol ELISA Kit (Colorimetric) [NBP3-18004] - Samples were spiked with high concentrations of Cortisol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-18004_bovine-sheep-cortisol-elisa-kit-colorimetric-13220241613048.jpg "ELISA: Bovine, Sheep Cortisol ELISA Kit (Colorimetric) [NBP3-18004] - Samples were spiked with high concentrations of Cortisol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Bovine, Sheep Cortisol ELISA Kit (Colorimetric) [NBP3-18004] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-18004_bovine-sheep-cortisol-elisa-kit-colorimetric-43202495025.jpg)
![ELISA: Bovine Albumin ELISA Kit [NBP3-12180] - Typical standard curve.](http://images.novusbio.com/fullsize/Bovine-Albumin-ELISA-Kit-ELISA-NBP3-12180-img0001.jpg "ELISA: Bovine Albumin ELISA Kit [NBP3-12180] - Typical standard curve.")
![ELISA: Human, Bovine HARS ELISA Kit (Colorimetric) [NBP3-18725] - Standard Reference Curve](http://images.novusbio.com/fullsize/Human-Bovine-HARS-ELISA-Kit-Colorimetric-ELISA-NBP3-18725-img0001.jpg "ELISA: Human, Bovine HARS ELISA Kit (Colorimetric) [NBP3-18725] - Standard Reference Curve")
![Bovine Estradiol ELISA Kit (Colorimetric) [NBP3-23540] - Samples were spiked with high concentrations of Bovine Estradiol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-23540_bovine-estradiol-elisa-kit-colorimetric-101020231655206.jpg "Bovine Estradiol ELISA Kit (Colorimetric) [NBP3-23540] - Samples were spiked with high concentrations of Bovine Estradiol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Bovine Estradiol ELISA Kit (Colorimetric) [NBP3-23540] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-23540_bovine-estradiol-elisa-kit-colorimetric-432024915851.jpg)
![Bovine Estriol ELISA Kit (Colorimetric) [NBP3-23542] - Samples were spiked with high concentrations of Bovine Estriol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-23542_bovine-estriol-elisa-kit-colorimetric-1010202316534921.jpg "Bovine Estriol ELISA Kit (Colorimetric) [NBP3-23542] - Samples were spiked with high concentrations of Bovine Estriol and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Bovine ESTRIOL ELISA Kit (Colorimetric) [NBP3-23542] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-23542_bovine-estriol-elisa-kit-colorimetric-4320248595142.jpg)
![Bovine Testosterone ELISA Kit (Colorimetric) [NBP3-23541] - Samples were spiked with high concentrations of Bovine Testosterone and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.](http://images.novusbio.com/fullsize/nbp3-23541_bovine-testosterone-elisa-kit-colorimetric-101020231655204.jpg "Bovine Testosterone ELISA Kit (Colorimetric) [NBP3-23541] - Samples were spiked with high concentrations of Bovine Testosterone and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.")
![ELISA: Bovine Testosterone ELISA Kit (Colorimetric) [NBP3-23541] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-23541_bovine-testosterone-elisa-kit-colorimetric-4320248574346.jpg)
![ELISA: Bovine Vitamin A ELISA Kit (Colorimetric) [NBP2-60188] - 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/Bovine-Vitamin-A-ELISA-Kit-Colorimetric-ELISA-NBP2-60188-img0002.jpg "ELISA: Bovine Vitamin A ELISA Kit (Colorimetric) [NBP2-60188] - These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.")
![Bovine Vitamin A ELISA Kit (Colorimetric) [NBP2-60188] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp2-60188_bovine-vitamin-a-elisa-kit-colorimetric-3120248504612.png)