食品科学 ›› 2005, Vol. 26 ›› Issue (3): 200-201.

• 分析检测 • 上一篇    下一篇

HPLC法测定巧克力中苯甲酸

 俞晔, 何松涛, 刘一军, 郁凤娟   

  1. 张家港出入境检验检疫局
  • 出版日期:2005-03-15 发布日期:2011-09-19

Detection for Benzoic Acid in Chocolate by HPLC

 YU  Ye, HE  Song-Tao, LIU  Yi-Jun, YU  Feng-Juan   

  1. Zhangjiagang Entry-Exit Inspection and Quarantine Bureau
  • Online:2005-03-15 Published:2011-09-19

摘要: 采用HPLC法测定巧克力中的苯甲酸,并提出了亚铁氰化钾和乙酸锌作为沉淀剂的前处理方法。该方法简便、快速,稳定可靠,苯甲酸检测限为0.5mg/L,相对标准偏差为2.4%,回收率为90.08%~103.91%。

关键词: 色谱法, 高效液相, 苯甲酸, 巧克力

Abstract: A method for determining benzoic acid in chocolate was established and advanced a pretreatment method by using ferrocyanic cyano-potassium and acetic acid znic as precipitating agent. The detection limits of benzoic acid were, the RSD 2.4%, and the recovery in the range of 90.08%~103.91%.

Key words: Chromatography , High performance liquid , Benzoic acid , Chocolate