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Type: Artigo de periódico
Title: QuEChERS-HPLC-DAD method for sulphonamides in chicken breast
Author: Machado, SC
Landin-Silva, M
Maia, PP
Rath, S
Martins, I
Abstract: The development of a QuEChERS-HPLC-DAD method using a Lichrospher 60 RP-Select B column (250 x 4.6 mm x 5 mu m) at 40 degrees C, mobile phase constituted by phosphate buffer: acetonitrile (75: 25, v/v) at a initial flow rate of 0.5 mL min(-1), increased by 1.2 mL min(-1) and at 265 nm is presented for simultaneous determination of sulphadiazine, sulphametoxipiridazine and sulphamethoxazole in chicken breast samples. QuEchERS is inexpensive, fast and easy, and the extraction of the analytes of the matrix was successfully employed. In addition, the method presented linearity, in the range of 25, 50, 100, 150, 175, and 200 mu g kg(-1), precision, selectivity and sensitivity. The intraday precision (RSD %) for QuEChERS method was between 3.6-10.8 (SDZ), 6.9-14.1 (SPZ) and 1.9-10.9 (SMX) and interday precision (RSD%) was between 1.5-9.7, 1.7-4.1 and 2.1-10.2, respectively. Results of accuracy (bias) were in the range of -8.6 to + 11.9 %. Therefore, the validated method is clearly useful for the practical residue monitoring of the drugs evaluated in chicken samples, as all the values were within the acceptable criteria used for food safety. Of 6 samples analyzed, none of them showed contamination of the sulphonamides studied at detectable levels.
Subject: QuEChERS
Sulphonamides determination
Veterinary drugs residues
Chicken breast
Country: Brasil
Editor: Univ Sao Paulo, Conjunto Quimicas
Rights: aberto
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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