Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Application of a DNA-based luminescence switch-on method for the detection of mercury(II) ions in water samples from Hong Kong

Language

English

Abstract

Mercury is a highly toxic environmental contaminant that damages the endocrine and central nervous systems. In view of the contamination of Hong Kong territorial waters with anthropogenic pollutants such as trace heavy metals, we have investigated the application of our recently developed DNA-based luminescence methodology for the rapid and sensitive detection of mercury(II) ions in real water samples. The assay was applied to water samples from Shing Mun River, Nam Sang Wai and Lamma Island sea water, representing natural river, wetland and sea water media, respectively. The results showed that the system could function effectively in real water samples under conditions of low turbidity and low metal ion concentrations. However, high turbidity and high metal ion concentrations increased the background signal and reduced the performance of this assay. © 2012 IOP Publishing Ltd.

Publication Date

2012

Source Publication Title

Environmental Research Letters

Volume

7

Issue

4

Start Page

044032 -1

End Page

044032 -7

Publisher

IOP Publishing

DOI

10.1088/1748-9326/7/4/044032

ISSN (print)

17489326

ISSN (electronic)

17489326

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