Screening of grapes and wine for azoxystrobin, kresoxim-methyl and trifloxystrobin fungicides by HPLC with diode array detection

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Abreu, SD (Author) Other; Correia, M (Author) Other; Herbert, P (Author) Other; Santos, L (Author) FEUP; Alves, A (Author) FEUP

Journal

Title: Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment

Vol. 22 No. 6

Pages: 549-556

ISSN: 1944-0049

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 47 Citations

Scopus - 53 Citations

Scientific classification

FOS: Agrarian Sciences > Other Agrarian Sciences

Other information

Authenticus ID: P-000-308

DOI: 10.1080/02652030500137918

Abstract (EN): The Quinone outside Inhibitors (QoI) are one of the most important and recent fungicide groups used in viticulture and also allowed by Integrated Pest Management. Azoxystrobin, kresoxim-methyl and trifloxystrobin are the main active ingredients for treating downy and powdery mildews that can be present in grapes and wines. In this paper, a method is reported for the analysis of these three QoI-fungicides in grapes and wine. After liquid-liquid extraction and a clean-up on commercial silica cartridges, analysis was by isocratic HPLC with diode array detection (DAD) with a run time of 13 min. Confirmation was by solid-phase micro-extraction (SPME), followed by GC/MS determination. The main validation parameters for the three compounds in grapes and wine were a limit of detection up to 0.073 mg kg(-1), a precision not exceeding 10.0 % and an average recovery of 93 % +/- 38.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8