Do I need to add Steroid Displacement Reagent to my samples prior to analysis with my hormone ELISA kits?

Date Published: July 18, 2023

If total steroid levels are to be measured, Steroid Displacement Reagent (SDR) should be added to the samples containing binding proteins before running in the assay. The reagent will preferentially associate with steroid binding proteins to the exclusion of the steroid itself. Once free of the binding proteins, the steroid in your samples can be measured. Samples that are extracted do not require the addition of SDR.

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