食品科学 ›› 2009, Vol. 30 ›› Issue (18 ): 344-346.doi: 10.7506/spkx1002-6630-200918080

• 分析检测 • 上一篇    下一篇

固相萃取- 高效液相色谱法测定肉制品中山梨酸、苯甲酸含量

陈昌云1,丁爱芳1,赵 波2,王正武3,*,郑思慧1   

  1. 1.南京晓庄学院化学系 2.南京师范大学化学与环境科学学院 3.上海交通大学农业与生物学院食品工程系
  • 收稿日期:2009-05-22 出版日期:2009-09-15 发布日期:2010-12-29
  • 通讯作者: 王正武 E-mail:zhengwuwang@sjtu.edu.cn
  • 基金资助:

    上海市科委纳米科技专项项目(0852nm06200);上海市科委技术标准专项项目(08DZ050500)

Solid Phase Extraction and High Performance Liquid Chromatographic Determination of Sorbic Acid and Benzoic Acid in Meat Products

CHEN Chang-yun1,DING Ai-fang1,ZHAO Bo2,WANG Zheng-wu3,*,ZHENG Si-hui1   

  1. 1. Department of Chemistry, Nanjing Xiaozhuang University, Nanjing 210017, China;2. College of Chemistry and
    Environmental Science, Nanjing Normal University, Nanjing 210097, China;3. Department of Food Science and
    Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2009-05-22 Online:2009-09-15 Published:2010-12-29
  • Contact: WANG Zheng-wu E-mail:zhengwuwang@sjtu.edu.cn

摘要:

目的:建立肉制品中苯甲酸、山梨酸的高效液相色谱测定方法。方法:样品经超声提取后,高速离心5min,取上清液定容至25ml,再经C18 SPE 小柱除去样品中的蛋白质类大分子物质,样品溶液经0.45μm 滤膜过滤后,用于HPLC 分析。结果:苯甲酸、山梨酸在20~100mg/L 浓度范围内线性关系良好(r > 0.9986),精密度实验表明,苯甲酸、山梨酸的RSD 分别为3.02% 和3.05%。不同加标水平的苯甲酸、山梨酸的回收率为101.79%~105.28%。结论:该方法简单高效、灵敏度高、线性范围宽,易于掌握。

关键词: 固相萃取, 超声提取, 高效液相色谱, 山梨酸, 苯甲酸

Abstract:

The purpose of this study was to develop a solid phase extraction and high performance liquid chromatographic method for the determination of benzoic acid and sobic acid in meat products. The procedure was based on extraction of test portions with hot water in an ultrasonic filed, 5 min high-speed centrifugation, dilution to 25 ml, clean-up using a C18 SPE cartridge to remove macromolecular substances like protein, and filtration through 0.45 μm membrane followed by HPLC analysis of the extracts. In the range of 20-100 mg/L, concentrations of benzoic acid and sorbic acid both displayed a good linear relationship with HPLC peak area (r>0.9986), and the precision RSDs of the method for determining them were 3.02% and 3.05%, respectively. The recoveries at three spiked levels were between 101.79% and 105.28%. The method is simple, rapid and easy to operate, and has high sensitivity and wide linear range.

Key words: solid phase extraction, ultrasonic-assisted extraction, high performance liquid chromatography, sobic acid, benzoic acid

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