Spectrophotometric determination of palladium(II) based on its catalytic effect on the reduction of azure I by sodium hypophosphite

被引：0

作者：

Zeydvandi, M. ^{[1
]}

Pourreza, N. ^{[1
]}

机构：

[1] Department of Chemistry, Ahvaz University Ahvax, Iran

来源：

Journal of Analytical Chemistry | 2006年 / 61卷 / 08期

关键词：

A catalytic-spectrophotometric method for the determination of traces of palladium(II) is proposed. The reaction is based on the catalytic action of palladium(II) on the reduction of azure I (λmax = 647 nm) by sodium hypophosphite. The various variables affecting the sensitivity were studied; and a study of interfering ions was also carried out. The reaction gave a detection limit of 4.3 ng/mL palladium(II) and good reproducibility with a relative standard deviation of 1.53-1.98% in the palladium(II) concentration range 40-200 ng/mL. The method yielded another linear range (5-40 ng/mL) when using slightly different conditions. In this case; the detection limit was 0.78 ng/mL palladium(II); and the relative standard deviation for ten replicate analyses of 20 ng/mL palladium(II) was 2.05%. The method was applied to the determination of palladium in a sample of activated charcoal. © Pleiades Publishing; Inc; 2006;

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摘要：

Journal article (JA)

引用

页码：744 / 747

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