食品科学 ›› 2009, Vol. 30 ›› Issue (18 ): 249-251.doi: 10.7506/spkx1002-6300-200918054

• 分析检测 • 上一篇    下一篇

饮料中天冬酰苯丙氨酸甲酯及其代谢物含量的测定方法

李 皓1,宋阳成1,滕红刚2,陈宇飞3,周 全1,陈长武1   

  1. 1.吉林工程技术师范学院 2.吉林亚泰生物药业股份有限公司 3. 吉林工商学院
  • 收稿日期:2009-06-10 出版日期:2009-09-15 发布日期:2010-12-29
  • 通讯作者: 李 皓 E-mail:muyelee@sina.com

HPLC Determination of Aspartame and Its Metabolite in Commercial Beverages

LI Hao1,SONG Yang-cheng1,TENG Hong-gang2,CHEN Yu-fei3,ZHOU Quan1,CHEN Chang-wu1   

  1. 1. Jilin Teacher's Institute of Engineering and Technology, Changchun 130052, China;2. Jilin Yatai Biopharmaceuticals Co. Ltd.,
    Changchun 130032, China;3. Jilin Business and Technology College, Changchun 130062, China
  • Received:2009-06-10 Online:2009-09-15 Published:2010-12-29
  • Contact: LI Hao E-mail:muyelee@sina.com

摘要:

目的:建立快速测定饮料中天冬酰苯丙氨酸甲酯及其代谢物(L- 苯丙氨酸)含量的系统分析方法。方法:采用高效液相色谱法,使用ZORBAX SB-C18 色谱柱,以0.1% 三氟乙酸- 乙腈流动相(85:15,V/V)作为分离条件,在DAD 检测器210nm 波长处进行检测。结果:该方法的最低检出量分别为L- 苯丙氨酸0.8ng,天冬酰苯丙氨酸甲酯2.4ng,标准曲线线性良好,相关系数分别为0.9998 和0.9994,回收率在96.3%~98.5% 之间,相对标准偏差小于2%。结论:该法简捷、快速且灵敏度高。

关键词: 饮料, 天冬酰苯丙氨酸甲酯, 苯丙氨酸, 高效液相色谱法

Abstract:

A HPLC method was presented for the rapid determination of aspartame and its metabolite in commercial beverages. The analytes were separated on a ZORBAX SB-C18 column using a mobile phase composed of 0.1% trifluoroacetic acid and acetonitrile (85:15, V/V) and detected using a DAD detector at 210 wavelength. The limits of detection of phenylalanine and aspartame by the method were 0.8 and 2.4 ng, respectively. There was a good linear relationship between concentration and peak area, and the correlation coefficients were 0.9998 and 0.9994, respectively. The spiked recoveries were 96.3% and 98.5%, respectively, with a RSD less than 2%. The method is simple, rapid and highly sensitive.

Key words: beverage, aspartame, phenylalanine, HPLC

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