食品科学 ›› 2012, Vol. 33 ›› Issue (14): 247-250.

• 分析检测 • 上一篇    下一篇

固相萃取-高效液相色谱法测定果醋中7种有机酸

薛 霞,霍艳敏,王 骏,张 卉,祝建华   

  1. 山东省产品质量监督检验研究院,国家加工食品质量监督检验中心(山东)
  • 收稿日期:2011-06-17 修回日期:2012-05-18 出版日期:2012-07-25 发布日期:2012-07-27
  • 通讯作者: 薛霞 E-mail:xuexia9549@163.com

Determination of Seven Organic Acids in Fruit Vinegar by Solid-phase Extraction and High Performance Liquid Chromatography

  • Received:2011-06-17 Revised:2012-05-18 Online:2012-07-25 Published:2012-07-27
  • Contact: xuexia E-mail:xuexia9549@163.com

摘要: 目的:建立果醋中7种有机酸同时测定的高效液相色谱方法。方法:用水提取果醋中有机酸,后经LC-SAX固相萃取柱净化,以Atlantis  T3 C18色谱柱进行分离,二极管阵列检测器检测。结果:在优化色谱条件下,7种有机酸在15min内分离良好,各组分回收率在97.5%~105.1%,相对标准偏差不大于1.31%,最低检出限在0.30~1.80μg/mL范围。结论:该方法具有简便、快速、准确等优点,可应用于果醋中有机酸的测定。

关键词: 果醋, 有机酸, 高效液相色谱, 固相萃取

Abstract: Objective: To develop an analytical method for the simultaneous determination of seven organic acids in fruit vinegar by high-performance liquid chromatography (HPLC). Methods: Organic acids in fruit vinegar were extracted with water, cleaned up using an LC-SAX solid phase extraction cartridge, separated using an Atlantis    T3 C18 column and detected using a diode-array detector. Results: Seven organic acids were separated within 15 minutes. The recovery rates of seven organic acids were in the range of 97.5%-105.1% with RSD of less than 1.31%. The limits of detection were 0.30-1.80 μg/mL. Conclusion: This method provides a simple, rapid, accurate and suitable method for the simultaneous determination of organic acids in fruit vinegar.

Key words: fruit vinegar, organic acids, high performance liquid chromatography, solid phase extraction

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