A Study on the Voltammetry of Palladium-a-Furil Dioxime System and Its Application

Abstract

Abstract: In 0.065 mol/L Na₂CO₃/NaHCO₃(pH 9.7) buffer solution containing 2.0× 10^-6 mol/La-furil dioxime (FD),a sensitive complex wave of Pd( Ⅱ )-FD was observed by using linear sweep voltammetry. The peak height of the wave is directly proportional to the concentration of Pd ( Ⅱ ) in the range 1.1× 10^-9-7. 5× 10^-8 mol/L. The behaviour of the complex of Pd( Ⅱ ) with FD at mercury electrode was investigated in detail. The molar ratio of Pd( Ⅱ ) to FD is 1:2 . The apparent stability constant is 4. 9 ×10¹². This method has been applied satisfactorily to the determination of trace palladium in ores.

Key words: Voltammetry, Adsorptive complex wave, Palladium, Trace analysis

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Liu Gabyuan, Wang Shuyu, Sun Tianlin, Chen Rongli. A Study on the Voltammetry of Palladium-a-Furil Dioxime System and Its Application[J]. Chem. J. Chinese Universities, 1990, 11(8): 891.

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A Study on the Voltammetry of Palladium-a-Furil Dioxime System and Its Application

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