FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (22): 331-334.doi: 10.7506/spkx1002-6300-200922079

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Use of HPLC Coupled with Tandem MS for Determination of Tridemorph Residues in Import and Export Foods

GAO Wen-hui1,AI Lian-feng2   

  1. 1. College of Biological Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
    2. Hebei Entry and Exit Inspection and Quarantine Bureau, Shijiazhuang 050071, China
  • Received:2008-11-28 Revised:2009-04-21 Online:2009-11-15 Published:2010-12-29
  • Contact: GAO Wen-hui E-mail:wenhuigao@126.com

Abstract:

A rapid and sensitive high performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS-MS) method for the determination of tridemorph residues in import and export foods was developed and validated in foods of various matrix. The tridemorph residues in samples were extracted with ethyl acetate and purified with solid extraction using ENVI-Carb/LC-NH2 column (peanut with GPC). The purified liquid was detected using HPLC-MS-MS and quantified using external standard method. Linear range of tridemorph was between 2.5 - 100 ng/ml with the correlation coefficients 0.9995 and the detection limit 2.5 ng/ml. The recoveries for all samples with tridemorph ranging 10-100 ng/g were between 80.2% and 101.8%. The relative standard deviations(R.S.D.s) were between 5.71%-10.50% (n=6). The results show that the method was convenient, rapid, accurate and of low detection limit, and could satisfy the request of Japan and Europe.

Key words: tridemorph, fungicide, residue, high performance liquid chromatography-tandem mass spectrometry

CLC Number: