Produção Nacional
Revisado por pares
Simultaneous determination of pesticides, biopesticides and mycotoxins in organic products applying a quick, easy, cheap, effective, rugged and safe extraction procedure and ultra-high performance liquid chromatography–tandem mass spectrometry
2011; Elsevier BV; Volume: 1218; Issue: 11 Linguagem: Inglês
10.1016/j.chroma.2011.01.034
ISSN1873-3778
AutoresRoberto Romero‐González, Antonia Garrido Frenich, José Luis Martı́nez Vidal, Osmar D. Prestes, Sergio López Grio,
Tópico(s)Mycotoxins in Agriculture and Food
ResumoA method for the simultaneous determination of pesticides, biopesticides and mycotoxins from organic products was developed. Extraction of more than 90 compounds was evaluated and performed by using a modified QuEChERS-based (acronym of Quick, Easy, Cheap, Effective, Rugged, and Safe) sample preparation procedure. The method was based on a single extraction with acidified acetonitrile, followed by partitioning with salts, avoiding any clean-up step prior the determination by ultra-high performance liquid chromatography/tandem quadrupole mass spectrometry (UHPLC–MS/MS). Validation studies were carried out in wheat, cucumber and red wine as representative matrixes. Recoveries of the spiked samples were in the range between 70 and 120% (with intra-day precision, expressed as relative standard deviation, lower than 20%) for most of the analysed compounds, except picloram and quinmerac. Inter-day precision, expressed as relative standard deviation, was lower than 24%. Limits of quantification were lower than 10 μg kg−1 and the developed method was successfully applied to the analysis of organic food products, detecting analytes belonging to the three types of compounds.
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