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

Abstract

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

CLC Number:

TS 207.53

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