FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (12): 190-195.doi: 10.7506/spkx1002-6630-201212038

• Analysis & Detection • Previous Articles     Next Articles

Rapid Simultaneous Determination of Eight Quinolone Residues in Eel by Syncore Analyst-Ultra Performance Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry

ZHANG Xian-chen1,HUA Hong-bo2,ZHANG Peng-jie1,WANG Yong1,*,YANG Fang1,LI Rong1, HU Yi-guang1, LU Jun-wen1   

  1. (1. Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan 528403, China; 2. Zhongshan Foreign Language School Attached to Guangdong University of Foreign Studies, Zhongshan 528401, China)
  • Online:2012-06-25 Published:2012-07-27

Abstract: A method for the simultaneous determination of eight quinolone residues in eel was developed by syncore analyst-ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry (SA-UPLC-MS/MS). Deuterium substituted reagents were added as internal standards before sample extraction with acidified acetonitrile, followed by concentration using a Syncore Analyst and clean-up with hexane. Eight quinolone residues were analyzed by UPLC-MS/MS under positive ion mode. The limit of detection of the method for eight quinolones was 0.5μg/kg, and the limit of quantification was 1.0μg/kg. The calibration curves showed good linearity over the concentration range of 2.5-200 ng/mL (r > 0.99). The average recovery rates were 81.4%-11.1% across three spike levels (n = 6). This method was simple, rapid, stable, reliable, sensitive and suitable for the determination of bulk aquatic products.

Key words: Syncore Analyst, ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry, qunolones, eel, residues

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