Rapid analysis of six phthalate esters in wine by ultrasound-vortex-assisted dispersive liquid–liquid micro-extraction coupled with gas chromatography-flame ionization detector or gas chromatography–ion trap mass spectrometry |
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Authors: | Giuseppe Cinelli Pasquale Avino Ivan Notardonato Angela Centola Mario Vincenzo Russo |
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Institution: | 1. Dipartimento di Agricoltura, Ambiente e Alimenti, Università del Molise, via de Sanctis, Campobasso, Italy;2. DIPIA, INAIL Settore Ricerca, via Urbana 167, 0184 Rome, Italy |
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Abstract: | An Ultrasound-Vortex-Assisted Dispersive Liquid–Liquid Micro-Extraction (USVADLLME) procedure coupled with Gas Chromatography-Flame Ionization Detector (GC-FID) or Gas Chromatography-Ion Trap Mass Spectrometry (GC-IT/MS) is proposed for rapid analysis of six phthalate esters in hydroalcoholic beverages (alcohol by volume, alc vol−1, ≤40%). Under optimal conditions, the enrichment factor of the six analytes ranges from 220- to 300-fold and the recovery from 85% to 100.5%. The limit of detection (LOD) and limit of quantification (LOQ) are ≥0.022 μg L−1 and ≥0.075 μg L−1, respectively. Intra-day and inter-day precisions expressed as relative standard deviation (RSD), are ≤8.2% and ≤7.0%, respectively. The whole proposed methodology has demonstrated to be simple, reproducible and sensible for the determination of trace phthalate esters in red and white wine samples. |
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Keywords: | Vortex shaking Ultrasound-assisted Dispersive liquid&ndash liquid micro-extraction Phthalate esters Wine |
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