A terminating reagent for the peroxidase-labelled enzyme immunoassay
Persijn, J.P.; Jonker, K.M.
Journal of Clinical Chemistry and Clinical Biochemistry 16(9): 531-532
1978
ISSN/ISBN: 0340-076X PMID: 361925 Document Number: 128766
Addition of a low concentration of sodium azide completely stops color development in a peroxidase-labeled enzyme immunoassay using 2,2'-azino-di(3-ethylbenzthiazoline-6-sulfonic acid) as substrate. Whereas high concentrations of azide cause a decrease in the color intensity, the low concentrations used here have no significant affect on the color.