Detection of aminoglycoside antibiotic residues in pork by QuEChERs method combined with SERS technique
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(1. Yangzhou University School of Medicine, Yangzhou, Jiangsu 225001, China; 2. Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, China)

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    Abstract:

    Objective: To achieve rapid, quantitative and high-throughput detection of aminoglycoside antibiotic residues in pork. Methods: Square-array aligned SERS substrates based on Au nanoflowers (AuNFs) were prepared using PP synthetic paper as a substrate. Pork samples were pre-treated by QuEChERs method and subjected to SRES. Results: Using 4-mercaptobenzoic acid as the SERS probe molecule, the substrate exhibited good homogeneity, SERS enhancement effect, reproducibility and stability. the SERS signal intensities at the characteristic peaks at 475, 619 cm-1 showed good linear relationships with the logarithms of the concentrations of gentamicin sulphate and neomycin sulphate, respectively (R2 of 0.991 6 and 0.990 7, respectively). The limits of detections (LODs) were as low as 1×10-9, 1×10-8 mol/L, respectively, and were successfully applied to the rapid, quantitative and high-throughput determination of aminoglycoside antibiotics in pork. Conclusion: The experimental method provides an economical, efficient, time-saving and highly sensitive way for the application of SERS technology for the detection of antibiotic residues in real meat samples.

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杨海帆,丁 莉,徐妙文,等. QuEChERs方法结合SERS技术检测猪肉中氨基糖苷类抗生素残留[J].食品与机械英文版,2024,40(3):68-74,81.

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  • Received:August 17,2023
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  • Online: April 30,2024
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