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One-year routine application of a new and rapid method based on ultra performance liquid chromatography-tandem mass spectrometry to the analysis of selected pesticides in citrus fruits.

Identifieur interne : 000962 ( PubMed/Corpus ); précédent : 000961; suivant : 000963

One-year routine application of a new and rapid method based on ultra performance liquid chromatography-tandem mass spectrometry to the analysis of selected pesticides in citrus fruits.

Auteurs : Remedios Fernández ; Antonia Garrido Frenich ; José Luis Martínez Vidal ; Roberto Romero González ; María Elena Hernández Torres

Source :

RBID : pubmed:19359795

English descriptors

Abstract

A rapid method has been developed for monitoring five multiclass pesticides commonly used in citrus fruits. The determination is performed by ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS), after extraction with a mixture of ethyl acetate and sodium sulfate. The method has been validated for orange matrix. Mean recoveries obtained were between 74-110% with a repeatability precision of < 7%, intermediate precision of < 10% and reproducibility precision of < 17%. Linearity over the range 0.010-0.150 mg/kg was demonstrated (r(2) > or = 0.99) with limits of quantification (LOQs) of < or = 0.01 mg/kg. Also, an analytical study focused on the stability of pesticide residues in orange extracts under storage was performed. The method has been applied to the analysis of 365 samples from the agricultural area of the Valencian Community (Spain). Of 103 samples that contained pesticide residues, only abamectin in 2 samples and carbendazim in 5 samples slightly exceeded the European maximum residue limits (MRLs).

PubMed: 19359795

Links to Exploration step

pubmed:19359795

Le document en format XML

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<title xml:lang="en">One-year routine application of a new and rapid method based on ultra performance liquid chromatography-tandem mass spectrometry to the analysis of selected pesticides in citrus fruits.</title>
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<name sortKey="Fernandez, Remedios" sort="Fernandez, Remedios" uniqKey="Fernandez R" first="Remedios" last="Fernández">Remedios Fernández</name>
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<nlm:affiliation>Laboratory of Pesticide Residues LAB, Calablanca Bajo, 04009 Almería, Spain.</nlm:affiliation>
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<name sortKey="Garrido Frenich, Antonia" sort="Garrido Frenich, Antonia" uniqKey="Garrido Frenich A" first="Antonia" last="Garrido Frenich">Antonia Garrido Frenich</name>
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<name sortKey="Martinez Vidal, Jose Luis" sort="Martinez Vidal, Jose Luis" uniqKey="Martinez Vidal J" first="José Luis" last="Martínez Vidal">José Luis Martínez Vidal</name>
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<name sortKey="Romero Gonzalez, Roberto" sort="Romero Gonzalez, Roberto" uniqKey="Romero Gonzalez R" first="Roberto" last="Romero González">Roberto Romero González</name>
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<name sortKey="Hernandez Torres, Maria Elena" sort="Hernandez Torres, Maria Elena" uniqKey="Hernandez Torres M" first="María Elena" last="Hernández Torres">María Elena Hernández Torres</name>
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<div type="abstract" xml:lang="en">A rapid method has been developed for monitoring five multiclass pesticides commonly used in citrus fruits. The determination is performed by ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS), after extraction with a mixture of ethyl acetate and sodium sulfate. The method has been validated for orange matrix. Mean recoveries obtained were between 74-110% with a repeatability precision of < 7%, intermediate precision of < 10% and reproducibility precision of < 17%. Linearity over the range 0.010-0.150 mg/kg was demonstrated (r(2) > or = 0.99) with limits of quantification (LOQs) of < or = 0.01 mg/kg. Also, an analytical study focused on the stability of pesticide residues in orange extracts under storage was performed. The method has been applied to the analysis of 365 samples from the agricultural area of the Valencian Community (Spain). Of 103 samples that contained pesticide residues, only abamectin in 2 samples and carbendazim in 5 samples slightly exceeded the European maximum residue limits (MRLs).</div>
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