Bromate determination in water after membrane complexation and total reflection X-ray fluorescence analysis

被引：36

作者：

Hatzistavros, Vasilios S. ^{[1
]}

Koulouridakis, Pavlos E. ^{[1
]}

Aretaki, Ioanna I. ^{[1
]}

Kallithrakas-Kontos, Nikolaos G. ^{[1
]}

机构：

[1] Tech Univ Crete, Analyt Environm Chem Lab, GR-73100 Khania, Greece

来源：

ANALYTICAL CHEMISTRY | 2007年 / 79卷 / 07期

关键词：

D O I：

10.1021/ac061231c

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new method for the determination of trace levels of bromates by selective membrane collection is presented. Various membranes containing a few micrograms of different complexing reagents in a poly(vinyl chloride) matrix were tested. These membranes were produced on the surface of quartz glass (reflectors), and they were immersed in solutions containing bromate and bromide ions. At the first stage the prepared membranes collected both bromate and bromide ions, so different bromide masking agents were put in the analyzed solutions to avoid bromide collection. By the end of the equilibration time, the reflectors were left to dry, and they were analyzed by total reflection X-ray fluorescence (TXRF). The poly(vinyl chloride) with aliquat-336 membrane and o-dianisidin complexing agent gave the best results. The minimum detection limit was equal to 0.9 ng/mL for ultrapure water and 1.0 ng/mL for drinking water.

引用

页码：2827 / 2832

页数：6

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