Preconcentration, separation and determination of trace Hg(II) in environmental samples with aminopropylbenzoylazo-2-mercaptobenzothiazole bonded to silica gel

被引：72

作者：

Ma, WX ^{[1
]}

Liu, F ^{[1
]}

Li, KA ^{[1
]}

Chen, M ^{[1
]}

Tong, SY ^{[1
]}

机构：

[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2000年 / 416卷 / 02期

关键词：

aminopropylbenzoylazo-2-mercaptobenzothiazole bonded to silica gel; preconcentration; separation; Hg (II); environmental samples; UV-VIS spectrophotometry;

D O I：

10.1016/S0003-2670(00)00886-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper reports a simple and highly selective method for the preconcentration and separation of trace Hg(II) with aminopropylbenzoylazo-2-mercaptobenzothiazole bonded to silica gel (ABMBT.SG). ABMBT.SG was tested for the selective extraction of Hg(II) and it showed an exchange capacity of 41.4 mu mol g(-1). After preconcentration and separation using an ABMBT.SG column, trace Hg(II) in environmental samples can be determined by UV-VIS spectrophotometry. The chromatographic column packed with ABMBT.SG can be reused. The method is simple and efficient, and is applied to polluted soil (2 mu g g(-1)), incinerated biological material (9 or 18 ng g(-1)) and spiked natural water (5 mu g l(-1)). (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 196

页数：6

共 17 条

[1] Solid-phase extraction of metal ions and their estimation in vitamins, steel and milk using 3-hydroxy-2-methyl-1,4-naphthoquinone-immobilized silica gel [J].