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Analysis of steroid hormones as endocrine disruptors in sewage, seawater and mussels using GC-MS techniques.

机译:使用GC-MS技术分析类固醇激素作为污水,海水和贻贝中的内分泌干扰物。

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摘要

Mussels are widely used to assess environmental impact of pollutants (metals and organics) in the marine environment. Mussels living near sewage outfalls may be exposed to constant levels of steroid estrogens through their food and respiration. This study examines whether these organisms can be used as a good bio-indicator for steroidal pollution. In this work, the analysis of steroid estrogens (estrone, estradiol, ethynylestradiol, diethylstilbestrol and mestranol) and fecal biomarker coprostanol in raw sewage, seawater and mussels collected from St. John's and Halifax harbours was undertaken. Two analytical methods based on GC- (ion trap) MS/MS were developed for mussel tissue and sewage analysis. A major factor in the success of method development was the removal of interferences of tissue matrix. Performance characteristics of these methods were evaluated using careful recovery experiments. Concentration of coprostanol in mussels was used as a qualitative indicator of relative sewage contamination among the sampling sites. (Abstract shortened by UMI.)
机译:贻贝被广泛用于评估海洋环境中污染物(金属和有机物)的环境影响。生活在污水排放口附近的贻贝可能会通过食物和呼吸而暴露于恒定水平的类固醇雌激素。这项研究检查了这些生物是否可以用作类固醇污染的良好生物指标。在这项工作中,对从圣约翰和哈利法克斯港口收集的原污水,海水和贻贝中的类固醇雌激素(雌酮,雌二醇,乙炔雌二醇,己烯雌酚和甲基雌醇)和粪便生物标志物coprostanol进行了分析。开发了两种基于GC-(离子阱)MS / MS的分析方法,用于贻贝组织和污水分析。方法开发成功的一个主要因素是消除了组织基质的干扰。使用仔细的回收率实验评估了这些方法的性能特征。贻贝中的前列腺素含量用作定性指标,以指示取样地点之间的相对污水污染。 (摘要由UMI缩短。)

著录项

  • 作者

    Saravanabhavan, Gurusankar.;

  • 作者单位

    Memorial University of Newfoundland (Canada).;

  • 授予单位 Memorial University of Newfoundland (Canada).;
  • 学科 Environmental Sciences.; Agriculture Fisheries and Aquaculture.
  • 学位 M.Sc.
  • 年度 2003
  • 页码 117 p.
  • 总页数 117
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境科学基础理论;水产、渔业;
  • 关键词

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