Multiclass pesticide analysis in fruit-based baby food: A comparative study of sample preparation techniques previous to gas chromatography-mass spectrometry

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Petrarca, MH (Author) Other; Fernandes, JO (Author) FFUP; Godoy, HT (Author) Other; Cunha, SC (Author) Other

Journal

Title: Food Chemistry

Vol. 212

Pages: 528-536

ISSN: 0308-8146

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 18 Citations

Scopus - 26 Citations

Other information

Authenticus ID: P-00K-JHG

DOI: 10.1016/j.foodchem.2016.06.010

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9