METHOD FOR STABILIZING ASCORBIC ACID OR ITS SALT IN SOLUTION STATE, SOLUTION CONTAINING ASCORBIC ACID OR ITS SALT AND ASSAY REAGENT FOR TARGET SUBSTANCE TO BE ASSAYED IN SAMPLE

Title:

METHOD FOR STABILIZING ASCORBIC ACID OR ITS SALT IN SOLUTION STATE, SOLUTION CONTAINING ASCORBIC ACID OR ITS SALT AND ASSAY REAGENT FOR TARGET SUBSTANCE TO BE ASSAYED IN SAMPLE

Document Type and Number:

Japanese Patent JP2002284775

Kind Code:

A

Abstract:

To provide a method for stabilizing ascorbic acid or its salt in a solution state, to obtain a solution containing stabilized ascorbic acid or its salt and to obtain an assay reagent for iron, UIBC or copper in a sample using the solution as a reducing agent solution.

This method for stabilizing ascorbic acid or its salt in a solution state comprises adding a hydroxylamine salt and/or a dithionite to a solution containing ascorbic acid and/or a dithionite. The solution contains ascorbic acid or its salt and a hydroxylamine and/or a dithionite. The reagent for assaying a target substance to be assayed in a sample comprises using a solution containing ascorbic acid or its salt and a hydroxyl amine salt and/or a dithionite as a reducing agent solution.

Inventors:

IIZUKA NAOMI
MOTOHASHI SHINICHI
NAKANO YORITO

Application Number:

JP2001135593A

Publication Date:

October 03, 2002

Filing Date:

March 27, 2001

Export Citation:

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Assignee:

SHINO TEST CORP

International Classes:

G01N33/90; C07D307/62; (IPC1-7): C07D307/62; G01N33/90

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