Simultaneous determination of bromide, bromate and nitrite in low μg 1-1 levels by ion chromatography without sample pretreatment

被引：98

作者：

Salhi, E ^{[1
]}

von Gunten, U ^{[1
]}

机构：

[1] Swiss Fed Inst Environm Sci & Technol, EAWAG, CH-8600 Dubendorf, Switzerland

来源：

WATER RESEARCH | 1999年 / 33卷 / 15期

关键词：

ion chromatography; postcolumn reaction; bromide; bromate; nitrite; drinking water; ozonation;

D O I：

10.1016/S0043-1354(99)00053-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new ipn chromatographic method has been developed for the simultaneous analysis of the major matrix anions (chloride, nitrate, phosphate, sulfate, etc.), lower concentrated bromide, oxyhalides (iodate, chlorite, bromate) and nitrite in fresh waters and sea water. The method is based on an anion exchange chromatographic separation followed by a sequential analysis through conductivity and subsequent postcolumn reaction with UV detection: Whereas the matrix anions are quantified by conductivity, the oxyhalides and nitrite are measured by the oxidation product I; which they generate from iodide in the postcolumn reaction. The detection limits as determined for bromide, bromate and nitrite are 3, 0.1 and 0.5 mu g l(-1), respectively. (C) 1999 Elsevier Science Ltd. Ail rights reserved.

引用

页码：3239 / 3244

页数：6

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