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Confirmation of five nitrofuran metabolites including nifursol metabolite in meat and aquaculture products by liquid chromatography-tandem mass spectrometry: Validation according to European Union Decision 2002/657/EC

Abstract : LC-MS/MS method for confirmation of nitrofuran metabolites in meat and aquaculture products, including the nifursol metabolite (DNSH), was developed. The nitrofuran metabolites investigated were as follows: 3-amino-2-oxazolidinone (AOZ), 3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ), 1-aminohydantoine (AHD), semicarbazide (SEM) and 3,5-dinitrosalicylic acid hydrazide (DNSH). The sample preparation includes a washing step, allowing to analyze only the fraction of protein-bound residues. The final optimized recovery solvent for injection was found to be a mixture of ammonium acetate 2 mM/acetonitrile (60/40 ; v/v). Matrix effects and stability in biological matrix and standard solution for DNSH have been also carried out. Method performances were assessed using criteria of the Decision (EC) No 2002/657 and considering the proposed-for-adoption reference point for action (RPA) of 0.50 µg.kg−1 under Reg 1871/2019. Trueness ranged 86.5%–103.7% and precision ranged 2.0%–6.5% on intra-laboratory reproducibility conditions. Decision limit (CCα) ranged 0.028–0.182 μg.kg−1 and capability of detection limit (CCβ) ranged 0.032–0.233 µg.kg−1.
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https://hal-anses.archives-ouvertes.fr/anses-03007203
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Submitted on : Monday, November 16, 2020 - 11:44:20 AM
Last modification on : Monday, November 16, 2020 - 11:44:21 AM

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Pierre Guichard, Michel Laurentie, Dominique Hurtaud-Pessel, Eric Verdon. Confirmation of five nitrofuran metabolites including nifursol metabolite in meat and aquaculture products by liquid chromatography-tandem mass spectrometry: Validation according to European Union Decision 2002/657/EC. Food Chemistry, Elsevier, 2020, pp.128389. ⟨10.1016/j.foodchem.2020.128389⟩. ⟨anses-03007203⟩

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