Possibilities of utilization of modern sample preparation methods for gas chromatographic analysis of beverages and especially beer. Part I. - literature review
2010
Horak, T.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Culik, J.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Jurkova, M.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Cejka, P.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Kellner, V.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Dvorak, J.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav | Haskova, D.,Vyzkumny Ustav Pivovarsky a Sladarsky, Prague (Czech Republic). Pivovarsky Ustav
Gas chromatography plays a significant role in the determination of flavours whose content is important not only for monitoring the quality of final product but also when testing new technological procedures. Sample preparation procedures including extraction, concentration and clean-up are often necessary before gas chromatographic determination. In the past two decades, numerous sample preparation techniques have been introduced. They can gradually supersede the current classical methods. These procedures include offline and online methods and they are based on thorough extraction as well as on equilibrium-setting approaches. This review discusses the advantages and disadvantages of seven modern sample preparation procedures (headspace, purge and trap, solid-phase extraction, solid-phase microextraction, single drop microextraction, supercritical fluid extraction, ultrasound assisted extraction) which can be used for analyzing beverages and especially beer.
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