title: A terminating reagent for the peroxidase-labelled enzyme immunoassay.
abstract: Addition of a low concentration of sodium azide completely stops colour development in a peroxidase-labelled enzyme immunoassay using 2,2'-azino-di(3-ethylbenzthiazoline sulphonic acid-6) as substrate. Whereas high concentrations of azide cause a decrease in the colour intensity, the low concentrations used here have no significant affect on the colour.
mesh_terms: D001386:Azides; D004077:Digoxin / Q000097:blood; D006801:Humans; D007124:Immunoenzyme Techniques; D007202:Indicators and Reagents; D008722:Methods; D010544:Peroxidases
chemical_list: D001386:Azides; D007202:Indicators and Reagents; D004077:Digoxin; D010544:Peroxidases