Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/329901
Type: Artigo
Title: Multiclass Pesticide Analysis In Fruit-based Baby Food: A Comparative Study Of Sample Preparation Techniques Previous To Gas Chromatography-mass Spectrometry
Author: Petrarca
Mateus H.; Fernandes
Jose O.; Godoy
Helena T.; Cunha
Sara C.
Abstract: With the aim to develop a new gas chromatography-mass spectrometry method to analyze 24 pesticide residues in baby foods at the level imposed by established regulation two simple, rapid and environmental-friendly sample preparation techniques based on QuEChERS (quick, easy, cheap, effective, robust and safe) were compared - QuEChERS with dispersive liquid-liquid microextraction (DLLME) and QuEChERS with dispersive solid-phase extraction (d-SPE). Both sample preparation techniques achieved suitable performance criteria, including selectivity, linearity, acceptable recovery (70-120%) and precision (<= 20%). A higher enrichment factor was observed for DLLME and consequently better limits of detection and quantification were obtained. Nevertheless, d-SPE provided a more effective removal of matrix co-extractives from extracts than DLLME, which contributed to lower matrix effects. Twenty-two commercial fruit-based baby food samples were analyzed by the developed method, being procymidone detected in one sample at a level above the legal limit established by EU. (C) 2016 Elsevier Ltd. All rights reserved.
Subject: Pesticides
Baby Food
Quechers
D-spe
Dllme
Contaminants
Editor: Elsevier Sci LTD
Oxford
Rights: fechado
Identifier DOI: 10.1016/j.foodchem.2016.06.010
Address: http://www.sciencedirect.com/science/article/pii/S0308814616309025?via%3Dihub
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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