Urease inhibition:: a tool for toxicity identification in sediment elutriates

被引：17

作者：

Brack, W

Paschke, A

Segner, H

Wennrich, R

Schüürmann, G

机构：

[1] UFZ Helmholtz Ctr Environm Res, Dept Chem Ecotoxicol, D-04318 Leipzig, Germany

[2] UFZ Helmholtz Ctr Environm Res, Dept Analyt Chem, D-04318 Leipzig, Germany

来源：

CHEMOSPHERE | 2000年 / 40卷 / 08期

关键词：

D O I：

10.1016/S0045-6535(99)00276-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method for the detection and confirmation of heavy metal toxicants in sediment elutriates based on a urease inhibition assay, ICP-AES analysis and EDTA chelation in the frame of toxicity identification evaluation (TIE) is presented. Zinc was identified as the major toxicant in pH(stat) elutriates of sediments of the river Saale (Germany). Implications of natural and anthropogenic chelating agents, which are frequently present in environmental samples, on toxicity confirmation of heavy metals based on the toxic unit approach are discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：829 / 834

页数：6

共 30 条

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