title: Comparison of two different multidimensional liquid-gas chromatography interfaces for determination of mineral oil saturated hydrocarbons in foodstuffs.
abstract: This investigation focused on direct comparison of two popular multidimensional liquid-gas chromatography (LC-GC) systems, the Y-interface (retention gap approach) and the syringe-based interface (programmed temperature vaporizer approach). Such transfer devices are structurally very different, and could potentially have a substantial effect on the outcome of a specific application. In this work the application was a topic of much current interest, determination of mineral oil saturated hydrocarbon (MOSH) contamination of a series of food products (rice, pasta, icing sugar, olive oil); the final results were then compared. The two LC-GC methods developed were validated for linearity over the calibration range, analyte discrimination, precision, accuracy, and limits of detection and quantification. No significant differences were found between the two approaches.
authors.affiliation: Dipartimento di Scienze degli Alimenti, University of Udine, Udine, Italy.
authors.forename: Giorgia
authors.initials: G
authors.lastname: Purcaro
authors.forename: Mariosimone
authors.initials: M
authors.lastname: Zoccali
authors.forename: Peter Quinto
authors.initials: PQ
authors.lastname: Tranchida
authors.forename: Laura
authors.initials: L
authors.lastname: Barp
authors.forename: Sabrina
authors.initials: S
authors.lastname: Moret
authors.forename: Lanfranco
authors.initials: L
authors.lastname: Conte
authors.forename: Paola
authors.initials: P
authors.lastname: Dugo
authors.forename: Luigi
authors.initials: L
authors.lastname: Mondello
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D006838:Hydrocarbons / Q000032:analysis*; D057230:Limit of Detection; D008899:Mineral Oil / Q000032:analysis*
chemical_list: D006838:Hydrocarbons; D008899:Mineral Oil