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Immunoassay Optimization

Immunoassay Optimization

Candor Biosciences provides an outstanding line of high-quality reagents for immunoassays and ELISA development. These reagents greatly improve the accuracy and stability of the assay, allowing for reliable results, simplified assays and reduced processing times. Our range of reagents include:


  • Optimization Buffers – multifunctional buffers and diluents, including the widely used antibody and sample dilution buffer LowCross-Buffer® for reducing interference in a range of assays.

  • Blockers – surface blocking reagents for minimizing non-specific binding, background, and cross-reactivities, thereby improving the sensitivity and specificity of the assay.

  • Stabilizers – stabilization reagents for long-term storage of antibodies, proteins, and conjugates in solutions or on coated surfaces, preventing loss of functionality for improved assay performance.


Our immunoassay reagents are essential for producing reliable assays without false positives or negatives, whether it is ELISA, Western Blotting, IHC, Protein Arrays, or Immuno-PCR. For more details, view a guide on using Candor Reagents in Sandwich ELISA.


View a list of citations for Candor's immunoassay optimization reagents in research conducted around the world.


NEW! Introducing PlateBlock™, a blocking reagent specifically developed for serological assays. PlateBlock™ greatly increases the reliability of the assay by reducing false positives. Together with LowCross Buffer, Liquid Plate Sealer, and HRP-Protector, PlateBlock can bring critical improvements to COVID-19 testing. A COVID-19 ELISA Sampler Package featuring 6 reagents is now available.


Learn more about the benefits of PlateBlock™ and other Candor reagents in COVID-19 serological assay development in Candor's recent publications:


Also by Candor Bioscience: ReadyTector® All-in-One Solution for Western Blotting