FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (7): 316-317.

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Study on Determination Method of Biphenol A Residue

 YANG  Cheng-Dui, SONG  Li-Hui   

  1. Department of Chemistry, Tsinghua University, Beijing 100084
  • Online:2008-07-15 Published:2011-07-28

Abstract: A new method was developed for direct determination of biphenol A residue by liquid chromatography tandem mass spectrometer. Sample was concentrated by solid phase extraction column. Selection reaction monitoring technique via negative electrospray ionization was used, and quantitative ion pairs were m/z 227 > m/z 132 and m/z 114. Mobile phase was methanol and water mixture (3:7), with flow rate 500μl/min. The linear range is 18.0~1800.0 ng/ml with a detection limit of 1.8 ng/ml, and the recovery is 91%. Cornparison resuts of UV and LC-MS2 showed that this method is simple, rapid, sensitive and accurate.

Key words: biphenol A, liquid chromatography tandem mass spectrometer, residue