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Spanning Discovery, Validation, and Verification Workflows

From our renowned R&D Systems ELISA kits and Luminex® assays to our fully automated Simple Plex™ and Simple Western™ systems, you can count on our immunoassays to deliver accurate, high-quality data consistently over time.

New to using R&D Systems Gold Standard Immunoassays?
Request your New User Discount today!

Terms and conditions

* Must not have purchased any R&D Systems immunoassays previously
* Applies only to a single Luminex assay, Proteome Profiler Array or Quantikine assay.
* Only applicable to academic customers. Offer is not valid in conjunction with any other offers or promotions.
* Valid until the 30th of June 2024.
* Quote discount code: MKT0506 to receive this offer.

Contact us  Download the Immunoassay Workflow Brochure


Our framework for manufacturing excellence begins with quality at the core. Our ability to develop and manufacture more than 90 percent of our proteins, antibodies and immunoassays in-house gives us a unique precision advantage. Tight quality control over every raw material and complete kits helps ensure we are providing you with the most reliable, consistent, and best-performing immunoassays available.

Identify the Best Immunoassay to Fit Your Needs!

Whether you need qualitative or quantitative results, have limited or abundant samples, require single or multi-analytes analysis, we will be able to find you an optimal solution.

Move Between Immunoassay Platforms with Confidence

We offer a full catalog of immunoassay solutions so you can find the best platform for your needs. When your needs change, you can also move between platforms with confidence and consistency in your results. High-Performance Luminex Assays and Simple Plex Cartridges are both correlated to the gold standard Quantikine ELISA. Whether you are starting with a multiplex assay or single analyte, we have your current and future needs covered.

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Seamless Transfer Between Immunoassay Platforms

Human serum levels of IFN-gamma was measured using High Sensitivity Quantikine ELISA, High-Performance Luminex Assay, and Simple Plex assays. The results show a nice correlation across the three types of immunoassays. 

Quality at the Core

From the raw materials we put in them to the scientists that develop them, we ensure quality every step of the way.

Core Reagents: 

R&D Systems antibodies, proteins, and specialized diluents are the foundation of all our immunoassays. High-quality raw materials are essential for building accurate and reproducible assays.


Bio-Techne brands have over 35 years of experience in developing and manufacturing immunoassays. Our expertise is used to build the most reliable assays with superior accuracy and precision.


Specialized diluents are used to overcome effects seen by complex sample matrices, so you get the most accurate and trusted results.

Quality Control: 

Every raw material and complete kit goes through stringent quality control testing to make sure your assays remain consistent over time and your data is reproducible.

Custom Services:  

Customized immunoassay solutions including modification of an existing assay, species testing, and qualification, and new immunoassay development are available to fit your experimental needs.

Recognition Awards:

R&D Systems is honored to be recognized for multiple awards in the life sciences industry. We take pride in providing our customers with high quality products that will continue to deliver reproducible and accurate results.


Bioz Top Star Award 2022

Bioz Top Star™

Most citations in ELISA immunoassay category
2022, 2021, 2020, 2019


CiteAb Award 2021

CiteAb Awards

Covid-19 Innovation Award: 2021
Researcher's Choice: 2020, 2018
ELISA Company of the Year: 2018 

Quantikine Elisas Main Panel

Quantikine ELISAs

R&D Systems Quantikine ELISA Kits are complete and ready-to-use. Immunoassays are available for measuring a range of molecules including cytokines, chemokines, growth factors, proteases, and more.

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Simple Plex Assays Main Panel

Simple Plex Assays

Ella does immunoassays in a microfluidic Simple Plex cartridges. It's like using a pre-kitted immunoassay, except everything's pre-loaded on the cartridge—even the calibration curve. All you need to do is add your sample and buffers and put the cartridge in Ella.

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Simple Western Assays Main Panel

Simple Western Assays

Simple Western™ platforms are the only systems on the market that fully automate traditional Western blotting - eliminating many of the tedious, error-prone steps of traditional Western blotting which limit data quality.

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Luminex Assays Main Panel

Luminex Assays

Multiplexing allows multiple biological target analytes to be simultaneously examined and quantified in a single sample. It’s a technique widely used by scientific researchers of all disciplines and provides many benefits.

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