FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (12): 672-674.

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Determination of Casein Phosphopeptides(CPPs) in Calcium Tablets by HPLC-MSD

 LAI  Yi-Jian, CHEN  Min-Jun, LIU  Yu-Min, TAO  Ping, ZHUANG  Ming-Zhu   

  1. 1.Instrumental Analysis Center, Shanghai Jiaotong University, Shanghai 200240, China; 2.School of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China
  • Online:2006-12-15 Published:2011-11-23

Abstract: A specific method was developed to determine the casein phosphopeptides(CPPs) in calcium tablets. The method was proved to be simple, specific and precise. The detection limit is 1μg/ml. Within the concentration range of 1~100μg/ml, the linear equation is y = 3074.6x + 684.6, R2=0.999. The recovery ranges from 96% to 104%. Thus, this method can be applied to the determination of CPP in calcium-enhancing agents.

Key words: casein phosphopeptide, HPLC-MS, food additives, calcium tablet