Screening of Carbamates and Ureas in Fresh and Processed Tomato Samples using Microwave-Assisted Extraction and Liquid Chromatography

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Paula Paiga (Author) Other; Simone Morais (Author) Other; Manuela Correia (Author) Other; Arminda Alves (Author) FEUP; Cristina Delerue Matos (Author) Other

Journal

Title: Analytical Letters

Vol. 42 No. 2

Pages: 265-283

ISSN: 0003-2719

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 14 Citations

ISI Web of Science

Scopus - 12 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

CORDIS: Technological sciences

Other information

Authenticus ID: P-003-P2G

DOI: 10.1080/00032710802585717

Abstract (EN): An analytical method, based on microwave-assisted extraction and liquid chromatography with diode array detection, for the determination of six carbamate and three urea pesticides in fresh and processed tomato samples is described. Significant parameters affecting extraction efficiency were optimized. Under optimum microwave-assisted extraction conditions (20mL acetonitrile, for 10 minutes, at 60C), pesticides were extracted with recoveries ranging from 57.6 to 102% (RSDs7%). Quantification limits between 6.5 and 39.6g/kg were obtained. A total number of 28 different fresh tomato samples and 6 processed tomato products were analysed. Confirmation of suspicious samples was performed by LC-MS.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19