Stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry: An effective tool for determining persistent organic pollutants and nonylphenol in coastal waters in compliance with existing Directives

Juan Sánchez-Avila, Jordi Quintana, Francesc Ventura, Romà Tauler, Carlos Duarte, Silvia Lacorte*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

A multi-residual method based on stir bar sorptive extraction coupled with thermal desorption-gas chromatography-mass spectrometry (SBSE-TD-GC-MS) has been developed to measure 49 organic pollutants (organochlorine pesticides, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, polybrominated diphenyl ethers and nonylphenol) in seawater. Using 100 ml of water, the method exhibited good linearity, with recoveries between 86% and 118% and relative standard deviation between 2% and 24% for almost all compounds. The method was applied to determine target contaminants in Catalonian seawater, including coastal areas, ports and desalination plant feed water. Overall individual compound levels oscillated between 0.16 and 597 ng l-1; PAHs and nonylpenol were the compounds found at the highest concentrations. The method provided LODs between 0.011 and 2.5 ng l-1, lower than the Environmental Quality Standards (EQS) fixed by Directive 2008/105/EC. In compliance with the directive, this method can be used as a tool to survey target compounds and is aimed at protecting coastal ecosystems from chemical pollution.

Original languageEnglish (US)
Pages (from-to)103-112
Number of pages10
JournalMarine Pollution Bulletin
Volume60
Issue number1
DOIs
StatePublished - Jan 1 2010

Keywords

  • Catalonia coastal water
  • Environmental Quality Standards
  • European Union Directives
  • Persistent organic pollutants
  • SBSE-TD-GC-MS
  • US-EPA regulations

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Pollution

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