Optimization of solid-phase extraction method for analysis of low-ppb amounts of aldehydes-ozonation by-products

被引：34

作者：

Nawrocki, J

Kalkowska, I

Dabrowska, A

机构：

[1] Dept. of Water Treatment Technology, Faculty of Chemistry, Adam Mickiewicz University, 60-613 Poznań

来源：

JOURNAL OF CHROMATOGRAPHY A | 1996年 / 749卷 / 1-2期

关键词：

ozonation; water analysis; derivatization; GC; extraction methods; aldehydes;

D O I：

10.1016/0021-9673(96)00363-9

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Ozonation is commonly used in drinking water treatment technology. Ozone reacts with natural organic substances present in water to produce a number of by-products. Aldehydes are the important class of ozonation byproducts due to their health effects. The determination of aldehydes in water by conventional analytical techniques is difficult because they are polar, unstable and exist at low concentration. A modern method for the determination of aldehydes in drinking water applies derivatization with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine (PFBOA) and liquid-liquid extraction (LLE). The objective of this study was to improve the method by application of solid-phase derivatization and extraction. C-18, C(18)polar plus and Phenyl Baker SPE sorbents were used for simultaneous derivatization and enrichment of aldehydes. Detection limits with GC-electron-capture detection technique were in the low ppt range.

引用

页码：157 / 163

页数：7

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