Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2018-06-01

Journal: Chemosphere

Included Journals: EI、SCIE、PubMed

Volume: 200

Page Number: 351-357

ISSN: 1879-1298

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

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. Copyright © 2018 Elsevier Ltd. All rights reserved.