Validation of a LC-MS/MS Multiresidue Methodology Based on a QuEChERS Approach for the Determination of Fluoroquinolones, Sulfonamides and Trimethoprim in Poultry and Porcine Kidney According to the Normative Instruction 24/2009-MAPA

• Autor(a) principal: Rocha,Diego G.
• Data de Publicação: 2017
• Outros Autores: Santos,Flavio A., Gomes,Aline A., Faria,Adriana F.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000100076
• topic: mass spectrometry; chromatography; sample preparation

This work involved the validation of a multiresidue method according to the Normative Instruction 24/2009-MAPA for determining 25 analytes, among fluoroquinolones, sulfonamides and trimethoprim in samples of poultry and porcine kidney. The extraction procedure was based on a QuEChERS approach. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed using the selected reaction monitoring mode (SRM) and ESI+ ionization. All of the validated figures of merit were evaluated as satisfactory. Accuracy was assessed by recovery studies, varying from 82.7 to 115.5% for porcine kidney and from 91.5 to 110.4% for poultry kidney. Relative standard deviations were lower than 25.5% for porcine kidney, and 29.8% for poultry kidney. Decision limits (CCα) comprised values from 10.37 to 3298.43 µg kg-1 for porcine kidney and 10.08 to 3176.59 µg kg-1 for poultry kidney. Detection capabilities (CCβ) varied from 10.73 to 3396.86 µg kg-1 for porcine kidney and 10.67 to 3253.19 µg kg-1 for poultry kidney. The developed method has been successfully employed in the routine analysis of incurred samples.