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Updated: Aug 12, 2026

06:13
Enzyme-linked Immunospot Assay (ELISPOT): Quantification of Th-1 Cellular Immune Responses Against Microbial Antigens
Published on: November 23, 2010
The use of 3,3',5,5'-tetramethylbenzidine as a peroxidase substrate in microplate enzyme-linked immunosorbent assay
Abstract:
The assay conditions for the use of 3,3',5,5' tetramethylbenzidine (TMB) in microplate enzyme-linked immunosorbent assay are described. TMB is a safe (non-mutagenic) chromogen that is more sensitive than OPD as a substrate for horseradish peroxidase. We describe the optimum storage and assay conditions for this chromogen.

