A novel solid-phase microextraction coating based on the electropolymerization of a molecular receptor properly functionalized with 2,2-bithiophene was developed for the determination of environmental pollutants in air and water samples. The 2,2-bithiophene-based film was electrochemically deposed on the surface of a gold wire using cyclic voltammetry. The fibres showed a porous structure with an average thickness of 12±3m (n = 5): a good intra-batch and inter-batch repeatability with RSD lower than 14% was also observed. The selective interactions via hydrogen bonding with organic molecules containing electronegative atoms was proved: LOD values in the low ng/l range allowed the determination of vinyl chloride and chlorobenzenes at trace levels in environmental matrices.

Novel coating for solid-phase microextraction: electropolymerization of a molecular receptor functionalized with 2,2’-bithiophene for the determination of environmental pollutants at trace levels / MATTAROZZI M.; GIANNETTO M.; SECCHI A.; BIANCHI F.. - In: JOURNAL OF CHROMATOGRAPHY A. - ISSN 0021-9673. - 1216(2009), pp. 3725-3730. [10.1016/j.chroma.2009.02.077]

Novel coating for solid-phase microextraction: electropolymerization of a molecular receptor functionalized with 2,2’-bithiophene for the determination of environmental pollutants at trace levels

MATTAROZZI, Monica;GIANNETTO, Marco;SECCHI, Andrea;BIANCHI, Federica
2009

Abstract

A novel solid-phase microextraction coating based on the electropolymerization of a molecular receptor properly functionalized with 2,2-bithiophene was developed for the determination of environmental pollutants in air and water samples. The 2,2-bithiophene-based film was electrochemically deposed on the surface of a gold wire using cyclic voltammetry. The fibres showed a porous structure with an average thickness of 12±3m (n = 5): a good intra-batch and inter-batch repeatability with RSD lower than 14% was also observed. The selective interactions via hydrogen bonding with organic molecules containing electronegative atoms was proved: LOD values in the low ng/l range allowed the determination of vinyl chloride and chlorobenzenes at trace levels in environmental matrices.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2293387
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