RayBio® Human CA19-9 ELISA Kit for cell culture supernatants, plasma, and serum samples.
Lead time: Typically ships within 1-2 business days. No Friday shipments.
RayBio® Human CA19-9 ELISA Kit for cell culture supernatants, plasma, and serum samples.
Lead time: Typically ships within 1-2 business days. No Friday shipments.
| Size | 1 Plate Kit, 2 Plate Kit, 5 Plate Kit |
| Estimated Lead Time | 1-2 business days |
| Species | Human |
| Sensitivity | 0.3 U/ml Need more sensitivity? Check out the new NexaTag® kit for this target. Still not enough? Then your answer is our Ultrasensitive Biomarker Testing Service powered by Simoa™ technology. |
| Detection Range | 0.3 U/ml - 200 U/ml |
| Specificity | This ELISA kit shows no cross-reactivity with the following cytokines tested: human Angiogenin, BDNF, BLC, CNTF, FGF-4, IL-1 alpha, IL-1 beta, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-11, IL-12 p70, IL-12 p40, IL-13, IL-15, I-309, IP-10, FGF-4, FGF-6, FGF-7, G-CSF, GDNF, GM-CSF, IFN-gamma, IGFBP-2, IGFBP-3, IGFBP-4, Leptin (OB), MCP-1, MCP-2, MCP-3, MDC, MIF, MIG, MIP-1 alpha, MIP-1 beta, MIP-1 delta, PARC, PDGF, RANTES, SCF, SDF-1 alpha, TARC, TGF-beta, TIMP-1, TIMP- 2, TNF-alpha, TNF-beta, TPO, VEGF. |
| Compatible Sample Types | Cell Culture Supernatants, Plasma, Serum |
| Recommended Dilution (Serum/Plasma) | 2 fold |
| Quantitative/Semi-Quantitative | Quantitative |
| Solid Support | 96-well Microplate |
| Design Principle | Sandwich-based |
| Method Of Detection | Colorimetric |
| Shipping Type | Blue ice |
| Storage | ≤-20°C |




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Human CA19-9 ELISA Kit
The kit is user friendly. Assay procedures are straight forward. We added one additional standard curve point at the higher end and it worked.
Review by I.L, from BioAgilytix, on Sep 24, 2025
The assay worked as planned, even with lower volumes for our PDAC samples, for CA19-9. Highly sensitive.
Review by gf, from OHSU, on Feb 23, 2024
The kit worked great. I had absolutely no problem with it. The minimum plasma volume should be 50 micro liters. Less volume did not work. Follow the instructions exactly as given. Good Luck
Review by MG, from Georgetown University, on Mar 11, 2020
Great kit, very sensitive, highly recommended.
Review by P.W, from Rockefeller University, on Jun 12, 2018
RayBio® Human CA19-9 ELISA Kit for cell culture supernatants, plasma, and serum samples.
Lead time: Typically ships within 1-2 business days. No Friday shipments.
Human CA19-9 ELISA Kit