Organotin speciation in Bizerte lagoon (Tunisia)

N. Mzoughi, G. Lespes, M. Bravo, M. Dachraoui, M. Potin-Gautier

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

For the first time, organotins have been assessed in samples collected from Bizerte lagoon, in Tunisia, during two seasons (summer and winter). The organotin distribution was studied in marine sediments and mussels tissues of this lagoon. Butyl-, phenyl- and octyltins were determined using a rapid speciation analytical method based on one-step ethylation/extraction with sodium tetraethylborate in aqueous phase. Simultaneously to the ethylation, the extraction was performed by either liquid/liquid extraction (LLE) or head-space solid phase microextraction (HS-SPME). Gas chromatography with pulsed flame photometric detection (GC-PFPD) was used to perform quantitative determination. The technique has been validated using biological and sediment reference materials. The different samples from Bizerte lagoon were found to be moderately contaminated, especially by butyltins. This pollution was attributed to industrial activities, which are very important in this area. Organotins appeared accumulated in both sediments and mussels, while significant degradations of triorganotins to monosubstituted ones was observed in water.

Original languageEnglish
Pages (from-to)211-222
Number of pages12
JournalScience of the Total Environment
Volume349
Issue number1-3
DOIs
StatePublished - 15 Oct 2005
Externally publishedYes

Keywords

  • Bizerte lagoon
  • Ethylation
  • Gas chromatography
  • Liquid-liquid extraction
  • Mussel tissue
  • Organotin compounds
  • Pulsed flame photometric detector (PFPD)
  • Sediment
  • Solid phase microextraction (SPME)

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