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Gas Chromatography

Determination of Tilmicosin in Poultry and Pork Meat by a Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) Preparation Method and Gas Chromatography–Tandem Mass Spectrometry (GC–MS/MS)

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Pages 1356-1368 | Received 04 Jun 2023, Accepted 11 Aug 2023, Published online: 24 Aug 2023
 

Abstract

This paper presents a novel and reliable approach for the determination of tilmicosin residues in poultry muscle and pork via gas chromatography–tandem mass spectrometry after precolumn derivatization. The samples were subjected to a quick, easy, cheap, effective, rugged, and safe preparation method, solid-phase extraction, hydrogenation, gel chromatography separation, acid hydrolysis, and derivatization with pyridine and acetic anhydride. For the blank spiked samples at the limit of quantification, 0.5 times the maximum residue limit (MRL), the MRL, and 2.0 times the MRL, the recoveries were from 76.91 to 87.99% with a precision of 2.04–5.47%. The limits of detection and quantification were 2.3–4.4 and 6.2–9.8 µg kg−1, respectively. The protocol was validated and real samples analyzed to demonstrate its practical application.

Additional information

Funding

This work was funded by the National Natural and Science Foundation of China (32273011), the Earmark Fund for China Agriculture Research System (CARS-41), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the Special Fund Program for Science and Technology Cooperation of Yangzhou City and Yangzhou University (YZ2021172), and the Postgraduate Research and Practice Innovation Program of Jiangsu Province (Yangzhou University) (KYCX22_3526).

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