| abstract |
(57) [Summary] [Objective] When a heme or peroxidase, which is an oxidation catalyst, is measured using a 2,3-dihydro-1,4-phthalazione derivative and an oxidizing agent, based on the luminescent reaction due to their catalytic action, Providing a method for reducing background emission. [Structure] In the coexistence of one or more compounds having a chelating effect, which contains a functional group represented by a specific chemical formula or a salt thereof in the structure and does not contain an aromatic hydrocarbon having a hydroxyl group in the structure. Performing the measurement reduces background luminescence in the measurement of heme or peroxidase. |