2004•Journal of Analytical ScienceRequires access

Inhibitory Kinetic Spectrophotometric Determination of Trace Nitrilotriacetic Acid

Liping Jia, Xueli Niu

Abstract

An inhibitory kinetic spectrophotometric method was proposed for the determination of trace nitrilotriacetic acid. The method was based on the inhibitory effect of nitrilotriacetic acid on the oxidation of acid bordeaux by KIO_(4) in HAc medium. The linear range is 0.01～0.12 μg/mL and the detection limit is 2.3×10~(-3)μg/mL.This method is simple, rapid and highly sensitive.The proposed method was applied for the determination of nitrilotriacetic acid in the synsthetic samples and laboratory waster water with satisfactory results.

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Key concepts: Nitrilotriacetic acid, Chemistry, Detection limit, Linear range, Kinetic energy, Chromatography, Trace Amounts, Nuclear chemistry