Determination of Aluminum in Its Ternary Complex by Stop-Flow Kinetic Method

Abstract

Abstract: The kinetic characteristic of ternary complex, Al-3,5-dibromosalicylfluorone and surfactant, was studied with automatic kinetic analyzer.The reaction orders of the proton, color reagent, and surfactant were determined.The activation energy of the reaction was measured to be 29.58 kJ/mol.A simple, rapid, and accurate analytical method for the kinetic determination of aluminum was developed with a high sensitivity(ε=1.11×10⁵L/mol·cm).The interference of many ions can be eliminated by kinetic method and it is satisfactory to apply this method to the determination of aluminum in the human hair samples.

Key words: Ternary complex, Stop-flow, Kinetic analysis, Aluminum

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YANG Yi, CAI Ru-xiu, HUANG Hou-ping, ZENG Yun-e, GAO Deng-yun . Determination of Aluminum in Its Ternary Complex by Stop-Flow Kinetic Method[J]. Chem. J. Chinese Universities, 1992, 13(3): 303.

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Determination of Aluminum in Its Ternary Complex by Stop-Flow Kinetic Method

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