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Fate of iprovalicarb, indoxacarb, and boscalid residues in grapes and wine by GC-ITMS analysis

Angioni, Alberto and Dedola, Fabrizio and Garau, Vincenzo Luigi and Schirra, Mario and Caboni, Pierluigi (2011) Fate of iprovalicarb, indoxacarb, and boscalid residues in grapes and wine by GC-ITMS analysis. Journal of Agricultural and Food Chemistry, Vol. 59 (12), p. 6806-6812. eISSN 1520-5118. Article.

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DOI: 10.1021/jf2011672

Abstract

The behavior in field and the transfer from grapes to wine during winemaking of iprovalicarb, indoxacarb, and boscalid was studied. The residue levels found in grapes were far below the MRLs set for grapes in EU, accounting at harvest time 0.81, 0.43, and 4.23 mg/kg for iprovalicarb, indoxacarb, and boscalid, respectively. The residue levels in the samples treated with boscalid may have residual problems (due to an accumulation effect) if repeated field treatments will be performed. Winemaking experiments showed a complete transfer of all pesticide from grapes to the must, while in wine the residues were low or negligible due to the adsorbing effect of lees and pomace. The clarification experiments showed a good removal of pesticide residues from the wine media, for all pesticides. The GC-ITMS method showed good performance with adequate recoveries ranging from 75 to 115%, and good method limits of quantitation (LOQs) and of determination (LODs) far below MRLs.

Item Type:Article
ID Code:6259
Status:Published
Refereed:Yes
Uncontrolled Keywords:GC-ITMS, residues, wine, grapes, winemaking, clarification
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/03 Arboricoltura generale e coltivazioni arboree
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di scienze delle produzioni alimentari, Sassari
002 Altri enti e centri di ricerca del Nord Sardegna > AGRIS Sardegna, Olmedo
Publisher:American Chemical Society
eISSN:1520-5118
Copyright Holders:© 2011 American Chemical Society
Deposited On:14 Jul 2011 11:38

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