, Volume 71, Issue 1–2, pp 139–142 | Cite as

Discovering Sudan IV in Salty Eggs with LC–TOF-MS

  • Cui Xinyi
  • Chu Xiaogang
  • Jerry A. Zweigenbaum
  • Fang Yanyan
  • Yong Wei
  • Ling Yun
Full Short Communication


This study evaluated the screening of Sudan dyes in salty egg using liquid chromatography/time-of-flight mass spectrometry (LC–TOF-MS). With this technology, accurate mass measurements were made to generate elemental compositions of ions and to provide complementary structural information. This approach is useful for the elucidation of organic pollutants at trace levels in complex food extracts and in the present study salty egg samples were analyzed for the presence of Sudan IV. TOF accurate mass elemental composition data of Sudan IV were found to be crucial for structural elucidation which was applied to the investigation of nine salty egg samples.


Column liquid chromatography Time-of-flight mass spectrometry Food analysis Dye Sudan IV 


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Copyright information

© Vieweg+Teubner | GWV Fachverlage GmbH 2009

Authors and Affiliations

  • Cui Xinyi
    • 1
  • Chu Xiaogang
    • 2
  • Jerry A. Zweigenbaum
    • 3
  • Fang Yanyan
    • 4
  • Yong Wei
    • 2
  • Ling Yun
    • 2
  1. 1.Department of HorticultureTianjin Agricultural UniversityTianjinPeople’s Republic of China
  2. 2.Chinese Academy of Inspection and QuarantineBeijingPeople’s Republic of China
  3. 3.Agilent Technologies, Inc.Little FallsDEUSA
  4. 4.Agilent Technologies (Shanghai) Co., LtdShangHaiPeople’s Republic of China

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