Title: Speciation of butyltin compounds in marine sediments and sea-shells by HG/GC/QFAAS

Authors: F. Pannier, A. Astruc, M. Astruc

Addresses: Laboratoire de Chimie Analytique, Universite de Pau et des, Pays de l'Adour, Avenue de l'Universite, 64000 Pau, France. Laboratoire de Chimie Analytique, Universite de Pau et des, Pays de l'Adour, Avenue de l'Universite, 64000 Pau, France. Laboratoire de Chimie Analytique, Universite de Pau et des, Pays de l'Adour, Avenue de l'Universite, 64000 Pau, France

Abstract: After optimisation of sample pretreatment and determination procedures, butyltin compounds were determined in selected marine sediments and biota using the hydride generation/gas chromatography/quartz furnace atomic absorption spectrometry method. Butyltins were detected in all surface sediment samples of Arcachon Bay, though at widely different concentrations (from a few ng g-1 in remote areas to 158 ng g-1 in marinas). The relative abundances of mono-, di- and tri-butyltin vary with the distance to point pollution sources and the depth of burial (i.e. the storage time). Half-life times of the three butyltin compounds were estimated in a marina sediment as close to 1.1, 1.9 and 2.1 years, respectively. Quite significant concentrations of butyltin compounds were measured in some commercial sea-shell samples.

Keywords: biota; butyltin; marine sediment; speciation.

DOI: 10.1504/IJEP.2000.002321

International Journal of Environment and Pollution, 2000 Vol.13 No.1/2/3/4/5/6, pp.313-324

Available online: 15 Aug 2003 *

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