Focused ultrasound and molecularly imprinted polymers: a new approach to organotin analysis in environmental samples

Journal of Chromatography. a
Mercedes Gallego-GallegosC Cámara

Abstract

There is a high interest in speciation of organotin compounds (OTCs) in biota and marine sediment samples, due to their influence in the transmission of the contamination in the trophic chain. Sample treatment is still the most "compromising" step of speciation analysis. Extraction methods are in general time-consuming due to long extraction times and several analytical steps involved. In addition, in most cases there are problems of low recovery, especially for MBT. These drawbacks, added to the high matrix effects generally present in biota samples, make the sample treatment for organotin analysis a serious challenge for environmental issues. Here we present a novel, fast and efficient two steps method for organotin speciation in mussel and oyster tissue as well as in marine sediments. The first step based on the use of ultrasonic probe extraction for species leaching allowed us to quantitatively extract these compounds in a few minutes. Matrix interferences drastically decreased by applying a clean-up step based on the use of an imprinted polymer especially designed for tributyltin (TBT). This procedure increased accuracy and precision of the GC-FPD analysis and improving the limit of detection, Besides, this new method prev...Continue Reading

References

Sep 28, 2000·The Science of the Total Environment·M A Champ
Jun 14, 2003·Journal of Colloid and Interface Science·Philippe BehraJean-Jacques Ehrhardt
Oct 31, 2008·Talanta·M CeulemansF Adams

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Citations

Feb 19, 2013·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Shanshan ZhuDazhen Wu
Apr 17, 2010·Journal of Chromatography. a·Mercedes Gallego-GallegosCarmen Cámara
Dec 17, 2009·Journal of Chromatography. a·José L TadeoAna I García-Valcárcel
Oct 28, 2008·Journal of Environmental Management·Mercedes Gallego-GallegosCarmen Cámara
Dec 13, 2006·Journal of Chromatography. a·Christian DietzCarmen Cámara
Apr 5, 2014·Journal of Molecular Recognition : JMR·Michael J WhitcombeIan A Nicholls
Dec 22, 2009·Journal of Separation Science·Asier VallejoLuis A Fernández
Nov 17, 2006·Journal of Biochemical and Biophysical Methods·Chiyang HeFeng Liu
Apr 26, 2007·Analytica Chimica Acta·Claudio BaggianiCristina Giovannoli

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