Get more done with our ELISA solutions

Enzyme-linked immunosorbent assay (ELISA) is a widely-established antibody-based technology that detects and quantifies substances like peptides, proteins, antibodies and hormones in a complex biological matrix like plasma, serum or cell culture. ELISAs offer high specificity, sensitivity and versatility.
Our broad range of gold-standard reagents can help you streamline your ELISA experiments and get more done. Our sensitive, rapid SimpleStep ELISA® kits allow you to get results you can trust in just 90 minutes, saving you time at the bench. Our carrier-free antibody pairs let you formulate your own assay for ultimate flexibility, and our recombinant protein standards complement our other solutions to give you the ultimate ELISA toolkit.
SimpleStep ELISA® kits
Product highlights
Human IL-6 ELISA Kit
- Sandwich ELISA
- Knock-out validated for guaranteed specificity
- Cited in over 200 publications
- 384-well format and bulk sizes available to support high-throughput workflows

Human TNF alpha ELISA Kit (ab181421)
- Sandwich ELISA
- Knock-out validated for guaranteed specificity
- Cited in over 250 publications
- 384-well format and bulk sizes available to support high-throughput workflows

PGE2 ELISA kit (ab316263)
- Competitive ELISA
- Validated in serum, plasma and cell culture media
- Also available for cell lysates and tissue extracts

Carrier-free matched antibody pairs
Whether you need to customize, upscale or adapt your immunoassay on a different platform, our broad range of over 1,800 carrier-free antibody pairs can help.
Free from preservatives, our carrier-free antibody pairs come conjugation-ready. Each pair uses our highly-validated recombinant monoclonal antibodies (the same pairs as in our SimpleStep ELISA® kits) for superior sensitivity and specificity. For ultimate flexibility, we also provide our pars as individual capture and detector antibodies. You can conjugate your antibody pairs with ease using our Lightning-Link® conjugation kits or use our biotinylated detector antibodies.
Product highlights
Human alpha SMA Antibody Pair - BSA and Azide free

NFAT2 Antibody Pair - BSA and Azide free (NFATC1)

Human/Mouse GFAP Antibody Pair - BSA and Azide free
- Recombinant monoclonal antibody pair
- Can be used as a translational tool to study AD and TBI mechanistic pathophysiology
- Individual capture and detector antibodies available

Protein standards
Protein standards are essential references and tools when running immunoassays, used to generate a standard curve and quantify your target protein’s concentration in a sample.
Our protein standards complement our other immunoassay solutions (SimpleStep ELISA® kits and carrier-free antibody pairs). They are characterized and validated with SDS-PAGE and sandwich ELISA assays using the corresponding capture and detector antibodies.
Our protein standards are
- Recombinant
- Animal-free
- Research-grade (>=80% SDS-PAGE purity)
- Compatible with a variety of mammalian species including human, mouse and rat
Product highlights
Recombinant Human NFAT2 Protein Standard (His tag)
- Expression system: E. coli
- >80% SDS-PAGE purity
- Compatible with our NFAT2 antibody pair

Recombinant Human CD200R Protein Standard (His tag)
- Expression system: HEK 293 cells
- >80% SDS-PAGE purity
- Compatible with our human CD200R antibody pair
