alexa Analysis of volatiles of malt whisky by solid-phase microextraction and stir bar sorptive extraction.
Chemical Engineering

Chemical Engineering

Mass Spectrometry & Purification Techniques

Author(s): Demyttenaere JC, Martnez JI, Verh R, Sandra P, De Kimpe N

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Abstract Blended Scotch whisky was analysed by solid-phase microextraction (SPME) and stir bar sorptive extraction (SBSE) to study the composition of the volatiles. For SPME analysis, three different fibres were compared, poly(dimethylsiloxane) (PDMS) (100 microm). poly(acrylate) (PA) (85 microm) and divinylbenzene-Carboxen on poly(dimethylsiloxane) (DVB-CAR-(PDMS) (50/30 microm). It was found that the PDMS and DVB-CAR-PDMS fibres showed a higher enrichment capacity than PA as well as a better reproducibility. The influence of sampling time, temperature and salt addition on the enrichment of volatiles as well as the difference between liquid and headspace SPME were studied. An optimum SPME method was developed. Finally a more recent sample preparation technique, namely SBSE was evaluated to extract whisky volatiles.
This article was published in J Chromatogr A and referenced in Mass Spectrometry & Purification Techniques

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