Chinese Journal of Chromatography

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Determination of melamine residue in feeds by ultra performance liquid chromatography coupled with
electrospray tandem mass spectrometry

CAI Qinren, OUYANG Yingyu, QIAN Zhenjie, PENG Yufen   

  1. Technical Center of Zhuhai Entry-Exit Inspection and Quarantine Bureau, Zhuhai 519015, China
  • Received:2007-08-21 Revised:2007-10-23 Online:2008-05-30 Published:1984-03-25
  • Contact: CAI Qinren

Abstract:

A method for fast determination melamine residue in feeds was established. An ultra performance liquid chromatography coupled with electrospray ionization quadrupole tandem mass spectrometry (UPLC-ESI-MS/MS) was used. The residue was quantified with multiple reaction monitoring (MRM) mode. The method was validated and good results were obtained with respect to precision, repeatability and spiked recovery. The limit of detection was 10 μg/kg for melamine, and the linear range was from 10 to 5000 μg/kg. The average recoveries were between 83% and 94% in the spiked range of 10-100 μg/kg, and the relative standard deviations (RSDs) were between 4.2% and 6.5%. The method has good repeatability and high sensitivity, and can be applied for the determination of melamine residue in feeds.

Key words: feed
,
melamine, ultra performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS)