食品科学 ›› 2005, Vol. 26 ›› Issue (7): 205-207.

• 分析检测 • 上一篇    下一篇

食品中曲酸的色谱分析

 聂西度, 谢华林, 谭文莉, 李爱阳   

  1. 湖南工学院化工系,中南大学化学化工学院应化系
  • 出版日期:2005-07-15 发布日期:2011-09-19

Study on Determination of Kojic Acid in Food by High Performance Liquid Chromatography

 NIE  Xi-Du, XIE  Hua-Lin, TAN  Wen-Li, LI  Ai-Yang   

  1. 1.Department of Chemical Engineering,Hunan Institute of Technology;2.College of Chemistry and Chemical Engineering,Central South University
  • Online:2005-07-15 Published:2011-09-19

摘要: 建立了食品中曲酸(KA)的离子对高效液相色谱法。采用0.01mol/L磷酸氢二钠-甲醇(95:5,V/V)为流动相,添加1.0mmol/L四丁基溴化胺(TBA),检测波长226nm,样品用40%甲醇超声提取,曲酸在Nova-PakC18柱上获得了良好分离。该方法的检出限为0.032mg/L,回收率为95.7%~103.2%,相对标准偏差为1.16%~2.01%。结果表明,方法的检出限为0.032mg/L,回收率为95.7%~103.2%,相对标准偏差为1.16%~2.01%。该法准确、快速、简便,应用于食品中曲酸的测定,结果满意。

关键词: 高效液相色谱法, 曲酸, 食品, 四丁基溴化胺

Abstract: In this paper a new and an efficient method for analyzing kojic acid(KA) in food by ion-pair high performance liquidchromatography was developed.Nova-PakC18 column was used and mobile phase was 0.01mol/L Na2HPO4-methanol(95:5,V/V)with addition of 1.0mmol/L tetrabutylammonium bromide(TBA).The wavelength 226nm was selected for detection.Sampleswere extracted with 40%methanol by ultrasonic method. Under the optinum conditions, the detection limit was 0.032mg/L. Therecoveries were 95.7%~103.2% and the relative standard deviations were 1.16%~2.01%. This method was accurate, quick-acquired and convenient.It is used in the determination of kojic acid with satisfactory result.

Key words: high performance liquid chromatography, kojic acid, food, tetrabutylammonium bromide