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US 9,176,066 B2Granted
Method for preserving aqueous solution containing leuco chromogen
AssigneeKyowa Medex Co., Ltd.
InventorHaruyo Soya
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AssigneeKyowa Medex Co., Ltd.
InventorHaruyo Soya
Estimating the term…
The present invention provides: a method for preserving an aqueous solution containing a leuco chromogen, comprising adding a compound having at least one substituent selected from the group consisting of a nitroso group and an azo group and having an ability to coordinate a metal ion or a salt thereof to the aqueous solution containing a leuco chromogen; a method for stabilizing a leuco chromogen, comprising allowing the leuco chromogen to coexist in an aqueous solution comprising a compound having at least one substituent selected from the group consisting of a nitroso group and an azo group and having an ability to coordinate a metal ion or a salt thereof; and a liquid reagent comprising a leuco chromogen and a compound having at least one substituent selected from the group consisting of a nitroso group and an azo group and having an ability to coordinate a metal ion or a salt thereof.
A method for preserving an aqueous solution containing a leuco chromogen, comprising the steps of adding to the aqueous solution containing said leuco chromogen a compound having at least one substituent selected from the group consisting of a nitroso group and an azo group and having an ability to coordinate a metal ion or a salt thereof, wherein
A method for stabilizing a leuco chromogen, comprising the steps of allowing the leuco chromogen to coexist in an aqueous solution comprising a compound having at least one substituent selected from the group consisting of a nitroso group and an azo group and having an ability to coordinate a metal ion or a salt thereof, wherein
Dependencies are inferred from the claim text.