2003•Journal of Liaocheng Teachers UniversityRequires access

Inhibitory Kinetic Spectrophotometric Determination for Trace Oxalic Acid

Zhai Ji-ying

Abstract

An inhibitory kinetic spectrophotometric method was proposed for the determination of trace oxalic acid. The method was based on the inhibitory effect of oxalic acid on the oxidation of acid bordeaux by KIO4 in HC1 medium. The linear range of the determination is 0. 008-0. 50 μg/mL and the detection limit is 0. 004 μg/mL. The results were satisfactory for the determination of oxalic acid in the urine and spinach with the present method.

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Key concepts: Oxalic acid, Detection limit, Spinach, Chemistry, Linear range, Chromatography, Inorganic chemistry, Biochemistry