title: Liquid chromatography-electrospray tandem mass spectrometry of cis-resveratrol and trans-resveratrol: development, validation, and application of the method to red wine, grape, and winemaking byproducts.
abstract: The application of liquid chromatography-electrospray tandem mass spectrometry (LC-ESI-MS/MS) was investigated for the analysis of trans-resveratrol in red wine, grape skin, grape pomace, and winemaking byproducts. Chromatographic elution performed under isocratic reversed-phase conditions using a C18 narrow-bore LC column allowed retention times lower than 12 min to be obtained. Qualitative analysis was performed in negative-ion (NI) full-scan and product-ion scan acquisition modes, whereas method validation in terms of linearity, detection limits, accuracy, and robustness was carried out under NI selected reaction monitoring conditions. The matrix-matched detection limit was calculated in the low parts per billion range (10 microg/L). Results of the application of the method to red wine, grape, and winemaking byproduct samples were compared with those obtained using an LC-UV/DAD technique. Determination of trans-resveratrol in the samples investigated showed that the highest concentration was found in red wine, whereas wine made from grape pomace contained the lowest content.
authors.affiliation: Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, Parco Area delle Scienze 17/A, I-43100 Parma, Italy.
authors.forename: Maria
authors.initials: M
authors.lastname: Careri
authors.forename: Claudio
authors.initials: C
authors.lastname: Corradini
authors.forename: Lisa
authors.initials: L
authors.lastname: Elviri
authors.forename: Isabella
authors.initials: I
authors.lastname: Nicoletti
authors.forename: Ingrid
authors.initials: I
authors.lastname: Zagnoni
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D005511:Food Handling; D005638:Fruit / Q000737:chemistry*; D015203:Reproducibility of Results; D000077185:Resveratrol; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013267:Stilbenes / Q000032:analysis*; D027843:Vitis / Q000737:chemistry*; D014920:Wine / Q000032:analysis*
chemical_list: D013267:Stilbenes; D000077185:Resveratrol