食品科学 ›› 2009, Vol. 30 ›› Issue (2 ): 190-192.doi: 10.7506/spkx1002-6630-200902041

• 分析检测 • 上一篇    下一篇

离子排斥液相色谱法测定食品中木糖醇的含量

赵 珊1,姚金苹2,丁晓静1,周 珊1   

  1. 1.北京市疾病预防控制中心 2.首都医科大学
  • 收稿日期:2008-01-15 修回日期:2008-03-22 出版日期:2009-01-15 发布日期:2010-12-29
  • 通讯作者: 赵珊 E-mail:ms_zhaoshan@yahoo.com.cn

Determination of Xylitol Content in Foods Using High Performance Ion Exchange Chromatography

ZHAO Shan1,YAO Jin-ping2,DING Xiao-jing1,ZHOU Shan1   

  1. (1. Bejing Center for Disease Prevention and Control, Beijing 100013, China;
    2. Capital Medical University, Beijing 100069, China)
  • Received:2008-01-15 Revised:2008-03-22 Online:2009-01-15 Published:2010-12-29
  • Contact: ZHAO Shan1 E-mail:ms_zhaoshan@yahoo.com.cn

摘要:

本实验建立了离子排斥高效液相色谱测定各类食品中木糖醇含量的方法。样品用水提取,含油样品加入正己烷除去油脂;以离子排斥机理的Sugar-PakTM 1 为分离柱,柱温90℃,超纯水做流动相,示差折光检测器进行检测。结果表明:糕点中木糖醇的平均回收率为97.0%,RSD 为4.3%;果汁中木糖醇的平均回收率为100.1%,RSD 为2.4%,检出限为50mg/L。该方法具有操作简便、检测准确的特点,适合于各类食品中木糖醇的常规测定。

关键词: 离子排斥液相色谱法, 食品, 木糖醇

Abstract:

In this study, xylitol was simply extracted by pure water, and the fat was removed by n-hexane. Then the analysis was performed with a Sugar-PakTM 1 column at 90 ℃ and a mobile phase of pure water, and detected by refractive index detector. The results showed that the average recoveries in cake and juice are 97.0% with a RSD 4.3% and 100.1% with a RSD 2.4%, respectively, and the detection limit (S/N=3) is 50 mg/L. The method is simple, accurate and suitable for the routine determination of xylitol in foods.

Key words: high performance ion exchange chromatography (HPIEC), food, xylitol

中图分类号: