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Development of a new screening method for the detection of antibiotic residues in muscle tissues using liquid chromatography and high resolution mass spectrometry with a LC-LTQ-Orbitrap instrument

Reputable Mentor II
Reputable Mentor II
Hurtaud-Pessel D, Jagadeshwar-Reddy T, Verdon E.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2011 Oct;28(10):1340-51.
A liquid chromatography–high resolution mass spectrometry (LC–HRMS) method was developed for screening meat for a wide range of antibiotics used in veterinary medicine. Full-scan mode under high resolution mass spectral conditions using an LTQ-Orbitrap mass spectrometer with resolving power 60,000 full width at half maximum (FWHM) was applied for analysis of the samples. Samples were prepared using two extraction protocols prior to LC–HRMS analysis. The scope of the method focuses on screening the following main families of antibacterial veterinary drugs: penicillins, cephalosporins, sulfonamides, macrolides, tetracyclines, aminoglucosides and quinolones. Compounds were successfully identified in spiked samples from their accurate mass and LC retention times from the acquired full-scan chromatogram. Automated data processing using ToxId software allowed rapid treatment of the data. Analyses of muscle tissues from real samples collected from antibiotic-treated animals was carried out using the above methodology and antibiotic residues were identified unambiguously. Further analysis of the data for real samples allowed the identification of the targeted antibiotic residues but also non-targeted compounds, such as some of their metabolites.
ANSES, French Agency for Food, Environmental and Occupational Health Safety, Laboratory of Fougeres, Javené, Fougères, France.
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‎11-09-2021 01:35 AM
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