Application of ion-chromatography for the determination of the organic-group parameters AOCl, AOBr and AOI in water

被引：67

作者：

Oleksy-Frenzel, J ^{[1
]}

Wischnack, S ^{[1
]}

Jekel, M ^{[1
]}

机构：

[1] Tech Univ Berlin, Dept Water Qual Control, D-10623 Berlin, Germany

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 366卷 / 01期

关键词：

Oxygen; Combustion; Wastewater; Iodine; Activate Carbon;

D O I：

10.1007/s002160050016

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method of differential AOX-analysis, i.e. the simultaneous determination of AOCl, AOBr and AOI is described. Individual steps of the method including enrichment at activated carbon, combustion in an oxygen stream and ion-chromatographic detection were optimized. In most cases quantitative recoveries of various organic Cl, Br and I containing substances of different polarity and structure were obtained. The method was applied to the determination of AOX-fractions in municipal and hospital wastewater. A good agreement between conventional coulometric and the described ion-chromatographic determination was found. High concentrations up to 130 mu g/L I of organic iodine compounds were measured in the influent and effluent of a municipal treatment plant in Berlin and up to 10 mg/L I in a hospital wastewater.

引用

页码：89 / 94

页数：6

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