Investigation and application of diffusive gradients in thin-films technique for measuring endocrine disrupting chemicals in seawaters

Huaijun Xie; Qining Chen; Jingwen Chen; Chang-Er L Chen; Juan Du

doi:10.1016/j.chemosphere.2018.02.096

Investigation and application of diffusive gradients in thin-films technique for measuring endocrine disrupting chemicals in seawaters

Chemosphere. 2018 Jun:200:351-357. doi: 10.1016/j.chemosphere.2018.02.096. Epub 2018 Feb 17.

Authors

Huaijun Xie¹, Qining Chen¹, Jingwen Chen², Chang-Er L Chen³, Juan Du¹

Affiliations

¹ Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
² Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China. Electronic address: jwchen@dlut.edu.cn.
³ The Environmental Research Institute, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China; Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University SE-106 91 Stockholm, Sweden.

PMID: 29494916
DOI: 10.1016/j.chemosphere.2018.02.096

Abstract

Endocrine disrupting chemicals (EDCs) can be released to coastal waters and affect the endocrine system of marine organisms. To monitor their levels in seawaters, a simple, robust passive sampling method, the diffusive gradients in thin-films (DGT) technique, was developed with XDA-1 resin as a binding agent. Six EDCs (including three estrogens, two pesticides and bisphenol A) were used to assess the performance of the DGT. The XDA-1 binding gel showed adequate ability for adsorbing EDCs in seawaters. The DGT sampler exhibited linear accumulation for the EDCs during a 15-day deployment and diffusion coefficients and sampling rates were calculated. The DGT measurement was independent of pH in the range 7.0-9.0 and ionic strength in the range 0.4-0.8 M. Field applications of this DGT in a coast of Dalian (China) showed comparable results to those from grab sampling. Five EDCs were detected with concentrations ranging from 0.7 to 19.4 ng L^-1. This study is a first attempt to apply DGT sampler for determining EDCs in seawaters.

Keywords: Diffusive gradients in thin-films; Endocrine disrupting chemicals; Passive sampling; Seawater; Water analysis.

MeSH terms

Diffusion
Endocrine Disruptors / analysis*
Environmental Monitoring / methods*
Seawater / analysis*
Water Pollutants, Chemical / analysis*

Substances

Endocrine Disruptors
Water Pollutants, Chemical