Determination of 1-chloro-4-[2,2,2-trichloro-1-(4-chlorophenyl)ethyl]benzene and related compounds in marine pore water by automated thermal desorption-gas chromatography/mass spectrometry using disposable optical fiber

Journal of Chromatography. a
Robert P Eganhouse, Erica L DiFilippo

Abstract

A method is described for determination of ten DDT-related compounds in marine pore water based on equilibrium solid-phase microextraction (SPME) using commercial polydimethylsiloxane-coated optical fiber with analysis by automated thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS). Thermally cleaned fiber was directly exposed to sediments and allowed to reach equilibrium under static conditions at the in situ field temperature. Following removal, fibers were rinsed, dried and cut into appropriate lengths for storage in leak-tight containers at -20°C. Analysis by TD-GC/MS under full scan (FS) and selected ion monitoring (SIM) modes was then performed. Pore-water method detection limits in FS and SIM modes were estimated at 0.05-2.4ng/L and 0.7-16pg/L, respectively. Precision of the method, including contributions from fiber handling, was less than 10%. Analysis of independently prepared solutions containing eight DDT compounds yielded concentrations that were within 6.9±5.5% and 0.1±14% of the actual concentrations in FS and SIM modes, respectively. The use of optical fiber with automated analysis allows for studies at high temporal and/or spatial resolution as well as for monitoring programs over large spatial ...Continue Reading

References

Feb 5, 2003·Environmental Science & Technology·Rik KraaijAngelique C Belfroid
May 31, 2003·Environmental Science & Technology·Philipp MayerDonald Mackay
Mar 5, 2004·Environmental Science & Technology·Amy E VinturellaJames P Shine
Jun 15, 2005·Environmental Science & Technology·Thomas L ter LaakJoop L M Hermens
Aug 21, 2007·Environmental Toxicology and Chemistry·Jing YouMichael J Lydy
Sep 20, 2008·Environmental Science & Technology·Robert P Eganhouse, James Pontolillo
Aug 24, 2010·Environmental Science & Technology·Erica L DiFilippo, Robert P Eganhouse
Sep 8, 2010·Environmental Toxicology and Chemistry·Sari PehkonenMichael J Lydy
Sep 14, 2010·Integrated Environmental Assessment and Management·Keith A MaruyaJames P Shine
Oct 19, 2010·Archives of Environmental Contamination and Toxicology·W Tyler MehlerJing You
Nov 8, 2011·Chemosphere·Amanda D HarwoodMichael J Lydy
Sep 1, 1983·Environmental Science & Technology·R P EganhouseI R Kaplan
Oct 22, 2013·Integrated Environmental Assessment and Management·Thomas F Parkerton, Keith A Maruya
Nov 30, 2013·Integrated Environmental Assessment and Management·Upal GhoshChris Beegan
Nov 30, 2013·Integrated Environmental Assessment and Management·Philipp MayerBeate I Escher
Dec 7, 2013·Integrated Environmental Assessment and Management·Michael J LydyJingfu Liu

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