Development of a SPME-GC-ECD methodology for selected pesticides in must and wine samples

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Correia, M (Author) Other; Delerue Matos, C (Author) Other; Alves, A (Author) FEUP

Journal

Title: Fresenius' Journal of Analytical Chemistry

Vol. 369

Pages: 647-651

ISSN: 0937-0633

Publisher: Springer

Indexing

ISI Web of Knowledge - 30 Citations

Scopus - 32 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-VXT

DOI: 10.1007/s002160100762

Abstract (EN): A method for the determination of some pesticide residues in must and wine samples was developed using solid-phase microextraction (SPME) and gas chromatography - electron capture detection (GC/ECD). The procedure only needs dilution as sample pre-treatment and is therefore simple, fast and solvent-free. Eight fungicides (vinclozolin, procymidone, iprodione, penconazole, fenarimol, folpet, nuarimol and hexaconazole), one insecticide (chlorpyriphos) and two acaricides (bromopropylate and tetradifon) can be quantified. Good linearity was observed for all the compounds in the range 5-100 mug/L. The reproducibility of the measurements was found acceptable (with RSD's below 20%). Detection limits of 11 mug/L, on average, are sufficiently below the proposed maximum residue limits (MRL's) for these compounds in wine. The analytical method was applied to the determination of these compounds in Portuguese must and wine samples from the Demarcated Region of Alentejo, where any residues could be detected.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5