Kinetic spectrophotometric determination of nitrite by catalytic reaction of bromopyrogallol red and bromate

被引：0

作者：

Khaskheli, AA

Mastoi, GM

Ansari, IA

Khuhawar, MY

机构：

[1] UNIV SINDH,NATL CTR EXCELLENCE ANALYT CHEM,JAMSHORO,PAKISTAN

[2] UNIV SINDH,INST CHEM,JAMSHORO,PAKISTAN

来源：

JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN | 1996年 / 18卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A sensitive kinetic spectrophotometric method for the determination of nitrite has been proposed, based on its catalytic effect on the oxidation of bromopyrogallol red (BPR) with bromate in sulphuric acid (0.15M). The decrease in absorbance at 467 nm is monitored spectrophotometrically after 5 min, with 20-1000 ng/ml nitrite. The presence of nitrate do not interfere me determination of nitrite. Coefficient of variation (C.V) for (n=10) was observed 0.866. The nitrite has been determined in water samples and results are compared with standard spectrophotometric method.

引用

页码：205 / 210

页数：6

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