OCCUPATION AND HEALTH ›› 2023, Vol. 39 ›› Issue (8): 1046-1049.

• Treatise • Previous Articles     Next Articles

Determination of six quinolones residues in milk by QuEchERS-high-performance liquid chromatography-tandem mass spectrometry

XIAO Xiao, WANG Ran-ran, Aiyireti·Maimaiti, LI Jing, YANG Xue-li, LI Fang   

  1. Health Monitoring and Inspection Center,Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region,Urumqi Xinjiang 830002,China
  • Received:2022-07-31 Revised:2022-08-22 Published:2026-03-11
  • Contact: LI Fang,Associate chief physician,E-mail:115144679@qq.com

Abstract: Objective To develop a methodfor the determination of six quinolones residues in milk by QuEchERS-high-performance liquid chromatography-tandem mass spectrometry. Methods The sample was extracted with acetonitrile containing 1% formic acid,purified with PSA powder,separated by C18 column,and detected by triple quadrupole mass spectrometry. Results The six quinolones showed good linearity in the concentration range of 2.0-100.0 ng/mL,the correlation coefficients were>0.999,the detection limits were 0.222-0.439 μg/kg,the quantitative limits were 0.739-1.464 μg/kg,the recoveries were 76.27%-97.84%,and the relative standard deviations were 3.22%-8.77%. Conclusion The method is simple,rapid and accurate,and can be used for the quantitative determination of quinolone residues in milk.

Key words: Milk, Quinolone, QuEchERS, High-performance liquid chromatography-tandem mass spectrometry

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