食品科学 ›› 2008, Vol. 29 ›› Issue (2): 318-320.

• 分析检测 • 上一篇    下一篇

Luminol-I2化学发光体系测定食用油中过氧化值的研究

 高向阳, 刘炎超, 王慧荣, 范彩玲, 王伟利   

  1. 河南农业大学食品科学技术学院; 河南农业大学食品科学技术学院 河南郑州450002; 河南郑州450002;
  • 出版日期:2008-02-15 发布日期:2011-08-24

Study on Determination of Peroxide Value in Cooking Oils by Luminol-I2 Chemiluminescence System

GAO  Xiang-Yang, LIU  Yan-Chao, WANG  Hui-Rong, FAN  Cai-Ling, WANG  Wei-Li   

  1. College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
  • Online:2008-02-15 Published:2011-08-24

摘要: 目的:为食用油和含有油脂的加工食品提供一种化学发光法测定过氧化值的新方法。方法:过氧化物氧化碘离子生成I2,该反应和Luminol-I2化学发光反应相耦合,进而对食用油样品中的过氧化值进行测定。结果:测定范围为(折合碘I2)0~1.0mg/L,RSD<4.50%(n=6),加标回收率为91.5%~97.3%,检出下限浓度为0.0073mg/LI2。测得结果与国标法结果进行F检验和t检验表明无显著性差异。结论:化学发光法快速简便、灵敏度高、多次平行测定结果令人满意。

关键词: 食用油, 化学发光法, 过氧化值

Abstract: Objective:A new method of chemiluminescence for determining the peroxide value in the cooking oils is developed. It is a good method for assaying the peroxide value in the cooking oils. Methods:The method is based on that the peroxide can oxidize iodine ion and the reaction is coupled with the chemiluminescence system luminal-I2. Results:Detection limit of method is 0.0073 mg/L and RSD is lower than 4.50%(n=6). The determination range of the method is between 0~1.0 mg/L. The recovery of the method is between 91.5% and 97.3%. Conclusion:The method can be used to determine the peroxide value in the cooking oils with satisfied results.

Key words: cooking oils, chemiluminescence, peroxide value