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Acid/extraction treatment of bivalves for organotin speciation

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Abstract

A method is described for leaching of nanogram amounts of monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), monophenyltin (MPT), diphenyltin (DPT), triphenyltin (TPT), and monomethyltin (MMT) from bivalves. The procedure is based on soaking the samples in a water-hydrogen bromide mixture (1:1) with magnetic stirring for 30 min followed by extraction with a 0.04% (w/v) tropolone solution in dichloromethane for 2 h. Organotins are determined by GC-FPD after clean-up through a Florisil column and fat hydrolysis by 1mol/L NaOH, followed by derivatization through Grignard pentylation. The method has been applied for an investigation of the occurrence of organotins in bivalves in south-west Spain.

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Authors and Affiliations

  1. Departamento de Química y Ciencia de los Materiales, Escuela Politécnica Superior, Universidad de Huelva, E-21819 La Rábida/Huelva, Spain, , , , , , ES

    J. L. Gomez-Ariza, E. Morales, I. Giraldez & R. Beltran

  2. Departamento de Bioquímica, Bromatología y Toxicología, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain, , , , , , ES

    J. A. Pozas Escobar

Authors
  1. J. L. Gomez-Ariza
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  2. E. Morales
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  3. I. Giraldez
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  4. R. Beltran
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  5. J. A. Pozas Escobar
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Received: 3 September 1994 / Revised: 2 October 1996 / Accepted: 7 November 1996

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Gomez-Ariza, J., Morales, E., Giraldez, I. et al. Acid/extraction treatment of bivalves for organotin speciation. Fresenius J Anal Chem 357, 1007–1009 (1997). https://doi.org/10.1007/s002160050294

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  • DOI: https://doi.org/10.1007/s002160050294

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