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Monitoring Dibutyltin and Triphenyltin in Fresh Waters and Fish in the United States Using Micro-Liquid Chromatography-Electrospray/Ion Trap Mass Spectrometry

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Abstract:There is a growing body of evidence that toxic organotins are making their way into humans and other mammals (terrestrial and marine). One possible route of environmental exposure in the U.S. to organotins (specifically dibutyltin and triphenyltin) is via fresh surface waters, and fish taken from those waters. A unique methodology (developed in-house at EPA-Las Vegas) was used for quantitative and specific detection (speciation) of the organotins. This green-chemistry method combines two extraction techniques (solid-phase extraction for waters; hexane/tropolone extraction for fish) with liquid chromatography-electrospray/ion trap mass spectrometry (u-LC-ES/ITMS) as the detection method. A small survey looking for organotins in fresh surface waters across the United States, and fish from those waters, was conducted. Various concentrations of dibutyltin and triphenyltin were detected in both the waters and fish from collection sites.
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Citation:Joneslepp, T., K. E. Varner, and D. T. Heggem. Monitoring Dibutyltin and Triphenyltin in Fresh Waters and Fish in the United States Using Micro-Liquid Chromatography-Electrospray/Ion Trap Mass Spectrometry. ARCHIVES OF ENVIRONMENTAL CONTAMINATION & TOXICOLOGY 46(1):90-95, (2004).
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Contact: Chris Siebert - (702) 798-2234 or siebert.christopher@epa.gov
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Division: Environmental Sciences Division
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Branch: Environmental Chemistry Branch
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Product Type: Journal
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Published: 02/17/2004
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Bullet Item Advances in Sampling, Separation, Detection and Identification That Address Unmet Needs of Oswer and the Regions
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