The use of nitrite ion in the chromatographic determination of large amounts of hypochlorite ion and of traces of chlorite and chlorate ions

被引：38

作者：

Gallina, A ^{[1
]}

Pastore, P ^{[1
]}

Magno, F ^{[1
]}

机构：

[1] Univ Padua, Dept Inorgan Metallorgan & Analyt Chem, I-35131 Padua, Italy

来源：

ANALYST | 1999年 / 124卷 / 10期

关键词：

D O I：

10.1039/a904562g

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An ion chromatographic procedure was developed for the one-run determination of ClO-, ClO2- and ClO3- present at very different concentration levels in the same sample. The method is based on the quantitative and fast reduction of HClO in slightly acidic medium by added sodium nitrite, followed by the ion chromatographic determination of ClO2-, ClO3- and the generated NO3-. The possibility of amperometric titration of the 'free chlorine' with a standard solution of NaNO2 was also ascertained. The performance characteristics of the analysis were defined.

引用

页码：1439 / 1442

页数：4

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