title: Enhanced resolution of Mentha piperita volatile fraction using a novel medium-polarity ionic liquid gas chromatography stationary phase.
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.
authors.affiliation: "Scienze chimiche, biologiche, farmaceutiche ed ambientali" Department, University of Messina, Messina, Italy.
authors.forename: Carla
authors.initials: C
authors.lastname: Ragonese
authors.affiliation: "Scienze chimiche, biologiche, farmaceutiche ed ambientali" Department, University of Messina, Messina, Italy.
authors.forename: Danilo
authors.initials: D
authors.lastname: Sciarrone
authors.affiliation: "Scienze chimiche, biologiche, farmaceutiche ed ambientali" Department, University of Messina, Messina, Italy.
authors.forename: Elisa
authors.initials: E
authors.lastname: Grasso
authors.affiliation: "Scienze chimiche, biologiche, farmaceutiche ed ambientali" Department, University of Messina, Messina, Italy.|University Campus Bio-Medico of Rome, Rome, Italy.|Chromaleont s.r.l., c/o University of Messina, Polo Annunziata, viale Annunziata, 98168 - Messina, Italy.
authors.forename: Paola
authors.initials: P
authors.lastname: Dugo
authors.affiliation: "Scienze chimiche, biologiche, farmaceutiche ed ambientali" Department, University of Messina, Messina, Italy.|University Campus Bio-Medico of Rome, Rome, Italy.|Chromaleont s.r.l., c/o University of Messina, Polo Annunziata, viale Annunziata, 98168 - Messina, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Mondello
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D052578:Ionic Liquids / Q000737:chemistry*; D036142:Mentha piperita / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis; D012015:Reference Standards; D014835:Volatilization
chemical_list: D052578:Ionic Liquids; D009822:Oils, Volatile
keywords: Gas chromatography; Ionic liquids; Peppermint oil; Terpenes