食品科学 ›› 2002, Vol. 23 ›› Issue (1): 101-103.

• 分析检测 • 上一篇    下一篇

分光光度法测定微量茴香醛的研究

 魏小平, 李建平, 蓝小月   

  1. 浙江大学化学系
  • 出版日期:2002-01-15 发布日期:2012-02-13

Spectrophotometric Determination of Micro-Amount of Anisaldehyde by Condensation Reaction with Tba

 WEI  Xiao-Ping, LI  Jian-Ping, LAN Xiao-Yue   

  • Online:2002-01-15 Published:2012-02-13

摘要: 研究了测定微量茴香醛的光度分析新方法。在盐酸介质中,硫代巴比妥酸与茴香醛发生缩合反应,生成棕色产物,可用于微量茴香醛的测定。最大吸收波长为415nm,茴香醛浓度在2×10-6-1×10-4mol/L范围内符合比尔定律。该法具有灵敏、准确、操作简便、快速等特点。用于测定食品中茴香醛的含量,结果满意。

关键词: 茴香醛, 分光光度法, 硫代巴比妥酸

Abstract: A spectrophotometric method for the determination of anisaldehyde in foods has been.developed.The procedure.was based on the rapid reaction between anisaldehyde and thiobarbituric acid in 0.04mol/L HCl.A colorful product was produced and exhibitd a maximum absorption wavelength at 415nm.Beer’s law is obeyed over the range 2×10-6~1×10-4mol/L anisaldehyde.The proposed method was sensitive,selective and simple.The method could be used to determine anisaldehyde in icecream and snowberry.

Key words: Anisaldehyde , Spectropyhotometry , Thiobarbituric acid