Highly selective catalytic determination of ultra trace amounts of rhodium by linear sweep voltammetry

被引：8

作者：

Ensafi, AA ^{[1
]}

Zarei, K ^{[1
]}

机构：

[1] Isfahan Univ Technol, Coll Chem, Esfahan, Iran

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1998年 / 361卷 / 02期

关键词：

Oxidation; Reference Electrode; Satisfactory Result; Trace Amount; Rhodium;

D O I：

10.1007/s002160050842

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly selective and sensitive method is proposed for the determination of rhodium, based on the catalytic effect on the oxidation of Nile blue by periodate. The reaction rate is monitored by measuring the current of Nile blue at -0.37 V vs. Ag/AgCl reference electrode. The linear working range is 5 to 100 ng/mL with a limit of detection of 0.1 ng/mL. The interference effects of more than forty ions were studied. The method was used for the determination of Rh (III) in synthetic samples with satisfactory results.

引用

页码：103 / 105

页数：3

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