TMB (3,5,3’5’-tetramethylbenzidine) is a popular chromogenic substrate for the detection of the enzyme HRP (horseradish peroxidase), a commonly used antibody label for ELISAs. An ELISA is a very specific
DAB (3,3’-diaminobenzidine) is the most commonly used amine substrate for histochemical detection of cell surface and intracellular antigens on frozen or embedded tissue sections, cytospins and touchdown preparations. Horseradish peroxidase (HRP), which is...