Catalytic kinetic-spectrophotometric determination of trace niobium

被引：0

作者：

Tao, HL ^{[1
]}

Li, JP ^{[1
]}

Li, WH ^{[1
]}

机构：

[1] Guilin Inst Technol, Dept Mat Engn, Guilin 541004, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 28卷 / 06期

关键词：

niobium; catalytic spectrophotometry; chlorosulfonphenol S;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new catalytic method for the determination of trace niobium has been developed with spectrophotometry. It is based on the catalytic effect of Nb(V) on the oxidation of potassium bromate with chlorosulfophenol S in diluted sulphuric acid medium, the linear ragne of Nb(V) is 0.005 similar to 0.1 mg/L, and the detection limit is 2.9 mu g/L. The method is sensitive, accurate and simple. It has been applied to the determination of niobium in alloy steel with satisfactory result.

引用

页码：696 / 698

页数：3