期刊
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
卷 32, 期 9, 页码 1962-1968出版社
WILEY-BLACKWELL
DOI: 10.1002/etc.2292
关键词
Solid-phase microextraction; Bioavailability; Xenoestrogen; Eisenia fetida
资金
- College of Human Ecology, Cornell University
- Cornell University Agricultural Experiment Station federal formula funds [NYC-329829 (W-2045)]
- Cooperative State Research, Education, and Extension Service, US Department of Agriculture
Biosolids applied to agricultural fields, parks, and other areas represent significant sources of estrogen-like endocrine disrupting compound (EEDC) inputs to soil. It is important to determine the bioavailability of EEDCs in soil to inform risk assessment concerning their environmental presence; Eisenia fetida (earthworms) are typically used in traditional in vivo bioavailability experiments. The development of an in vitro bioavailability method will decrease time, expense, and use of solvents in future analyses. A thin-film solid-phase microextraction (TF-SPME) method for determining the bioavailability of several EEDCs detected in biosolids was developed and optimized. It was found that the TF-SPME method could be used to calculate equilibrium porewater concentrations of diethylhexyl phthalate, bisphenol A, benzophenone, and triclosan at environmentally relevant concentrations in artificial soil within 88 min. The potential and limitations of using TF-SPME-generated porewater concentrations to predict E. fetida tissue concentrations are discussed. (C) 2013 SETAC
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