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Abstract

A reagent for determination of hydrogen peroxide which comprises (A) a compound represented by the following general formula (I): R.sup.1--NH--R.sup.2 (I) (wherein R.sup.1 represents a carbamoyl group or the like, and R.sup.2 represents an arylamino group, a heteroarylamino group, or a substituent represented by the following general formula (II): 1 [wherein R.sup.3 to R.sup.6 represent X--Y--R.sup.a {R.sup.a represents a hydrogen atom, an alkyl group or the like, X represents a single bond, O or the like, and Y represents a single bond, (C.dbd.O) or the like}, a cyano group, a halogen atom or the like]>; (B) a compound represented by the general formula (III): 2 [wherein R.sup.9 represents a group which can be eliminated by oxidative coupling color-developing reaction with the compound represented by the formula (I), and R.sup.7, R.sup.8, and R.sup.10 to R.sup.13 have the same meaning as that of R.sup.3], or the like; and (C) a peroxidative substance.

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First Claim