title: Analysis of six fungicides and one acaricide in still and fortified wines using solid-phase microextraction-gas chromatography/tandem mass spectrometry.
abstract: A multiresidue gas chromatographic method for the determination of six fungicides (captan, chlorthalonil, folpet, iprodione, procymidone and vinclozolin) and one acaricide (dicofol) in still and fortified wines was developed. Solid-phase microextraction (SPME) was chosen for the extraction of the compounds from the studied matrices and tandem mass spectrometry (MS/MS) detection was used. The extraction consists in a solvent free and automated procedure and the detection is highly sensitive and selective. Good linearity was obtained with correlation coefficients of regression (R(2))>0.99 for all the compounds. Satisfactory results of repeatability and intermediate precision were obtained for most of the analytes (RSD⩽20%). Recoveries from spiked wine ranged from 80.1% to 112.0%. Limits of quantification (LOQs) were considerably below the proposed maximum residue limits (MRLs) for these compounds in grapes and below the suggested limits for wine (MRLs/10), with the exception of captan.
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal; REQUIMTE, Instituto Superior de Engenharia do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
authors.forename: Joana
authors.initials: J
authors.lastname: Martins
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal.
authors.forename: Cristina
authors.initials: C
authors.lastname: Esteves
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal.
authors.forename: Ana
authors.initials: A
authors.lastname: Limpo-Faria
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal.
authors.forename: Paulo
authors.initials: P
authors.lastname: Barros
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal.
authors.forename: Natália
authors.initials: N
authors.lastname: Ribeiro
authors.affiliation: IVDP, Instituto dos Vinhos do Douro e do Porto, Rua de Ferreira Borges, 27, 4050-253 Porto, Portugal.
authors.forename: Tomás
authors.initials: T
authors.lastname: Simões
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. Electronic address: mmb@isep.ipp.pt.
authors.forename: Manuela
authors.initials: M
authors.lastname: Correia
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
authors.forename: Cristina
authors.initials: C
authors.lastname: Delerue-Matos
mesh_terms: D056810:Acaricides / Q000032:analysis / Q000737:chemistry*; D005659:Fungicides, Industrial / Q000032:analysis / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D052617:Solid Phase Microextraction / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014920:Wine / Q000032:analysis*
chemical_list: D056810:Acaricides; D005659:Fungicides, Industrial
keywords: Acaricide; Fungicide; GC–MS/MS; SPME; Wine