食品科学 ›› 2006, Vol. 27 ›› Issue (12): 672-674.

• 分析检测 • 上一篇    下一篇

LC-MS法测定钙片中酪蛋白磷酸肽含量

赖奕坚,陈闽军,刘玉敏,陶萍,庄明珠   

  1. 上海交通大学分析测试中心; 上海交通大学药学院;
  • 出版日期:2006-12-15 发布日期:2011-11-23

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

摘要: 用液相色谱-质谱联用法,以选择离子模式(SIM)检测钙片中酪蛋白磷酸肽(CPP)含量。结果表明,该法前处理简便,专属性好,灵敏度高,检出限为1μg/ml,在1~100μg/ml范围内线性回归方程为y=3074.6x+684.6,R2=0.999,回收率为96%~104%,可用于测定钙片中CPP的含量,也可用于其它钙强化剂中添加CPP的检测。

关键词: 酪蛋白磷酸肽, 液质联用, 食品添加剂, 钙片

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