Enhanced resolution of Mentha piperita volatile fraction using a novel medium‐polarity ionic liquid gas chromatography stationary phase |
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| Authors: | Carla Ragonese Danilo Sciarrone Elisa Grasso Paola Dugo Luigi Mondello |
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| Affiliation: | 1. “Scienze chimiche, biologiche, farmaceutiche ed ambientali” Department, University of Messina, Messina, Italy;2. University Campus Bio‐Medico of Rome, Rome, Italy;3. Chromaleont s.r.l., c/o University of Messina, Polo Annunziata, viale Annunziata, 98168 – Messina, Italy |
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| Abstract: | The evaluation of a novel medium‐polarity ionic‐liquid‐based gas chromatography column, SLB‐IL60, towards the analysis of a complex essential oil, namely, a peppermint essential oil sample, is reported. The SLB‐IL60 30 m column was subjected to bleeding measurements, by means of conventional gas chromatography with mass spectrometry. The SLB‐IL60 column was then evaluated in the analysis of pure standard compounds, chosen as typical constituents of peppermint essential oil. Resolution and peak symmetry (expressed as tailing factors at 10% of peak height) were measured and the results were compared to those obtained on the most widely used columns in such an application, namely a medium‐polarity [100% poly(ethyleneglycol)] stationary phase, and an apolar 5% diphenyl/95% dimethyl siloxane. The final part of the evaluation was dedicated to the gas chromatography with mass spectrometry analysis of a peppermint essential oil sample and again the data were compared to those obtained on the 100% poly(ethyleneglycol) and the 5% diphenyl/95% dimethyl siloxane phase. Linear retention indices were determined for all the identified components on the ionic liquid capillary. |
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| Keywords: | Gas chromatography Ionic liquids Peppermint oil Terpenes |
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