FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (3): 400-402.

Previous Articles     Next Articles

Determination of Sudan Pigment in Preserved Egg by Combination of Matrix Solid Phase Dispersion and High Performance Liquid Chromatography

 LIU  Hong-Cheng, WANG  Zhi-Fei, LI  Qi-Wan, ZOU  Yan-Hong, SHAO  Jin-Liang, TANG  Li-Bin   

  1. 1.Supervision and Testing Center for Farm Product Quality, Ministry of Agriculture, Yunnan Academy of Agriculture Science, Kunming 650223, China;2.College of Chemistry and Biotechnology,Yunnan National University, Kunming 650091, China; 3.Kunming Institute of Physics, Kunming 650223, China
  • Online:2008-03-15 Published:2011-08-24

Abstract: An analytic method for Sudan I~IV residues determination in preserved eggs by HPLC was developed. The sample was extracted and purified quickly by matrix solid phase dispersion (MSPD), separated by a Waters Nova-Park C18 (3.9mm×150 mm,5μm) and detected respectivey with two wavelengths UV detector at 478nm and 520 nm. Two pillars confirmed a positive result. The recoveries range of determination is 85.5%~97.5%. The relative standard deviation (RSD) is 3.1%~5.1%. The detection limit is 0.1μg/ml.

Key words: matrix solid phase dispersion, preserved egg, Sudan I~IV, HPLC