Abstract
A method is proposed which allows the direct gas chromatographic analysis of real-life samples of wine (i.e., without the need of preliminary sample preparation) just by using a programmed temperature vaporizer injector operated in a modified solvent elimination mode. The procedure presented is ecologically beneficial as no solvent is required for its performance; it is not expensive since it does not demand a special methodology; and it might be used as a quick screening in several fields. A comparison of the proposed method with other isolation techniques (i.e., continuous liquid-liquid extraction and simultaneous distillation-extraction) usually employed for the concentration of volatile components is also included
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