食品科学 ›› 2005, Vol. 26 ›› Issue (4): 209-211.

• 分析检测 • 上一篇    下一篇

鲜奶中甲醛快速检测新方法研究

 于琴, 董文宾, 王顺民, 赵旭博   

  1. 陕西科技大学生命科学与工程学院
  • 出版日期:2005-04-15 发布日期:2011-09-19

Study on a New Method for Rapid Inspection of Formaldehyde in Fresh Milk

 YU  Qin, DONG  Wen-Bin, WANG  Shun-Min, ZHAO  Xu-Bo   

  1. College of Life Science and Engineering, Shaanxi University of Science and Technology
  • Online:2005-04-15 Published:2011-09-19

摘要: 本文通过试验建立了一种鲜奶中甲醛测定的新方法,即给掺假样品中加入AgNO3和NaOH试液,置沸水浴加热即会出现淡咖啡~深咖啡色均判为阳性反应。在最佳操作条件下,对甲醛的最低检出限可达到7.6μg/ml乳。方法灵敏,试剂简单,掺假现象容易判断,便于推广应用。

关键词: 鲜奶, 甲醛, 检测

Abstract: In this paper a new method for rapid inspection of formaldehyde in fresh milk was established through the test. AgNO3 and NaOH solution were added to the adulterated sample sequentially and the sample was bath boiled, when the coffee-color of different shades appeared to show reaction the positive. Under the optimum operation conditions, the lowest quantity limit of formaldehyde detected was 7.6μg/ml milk. The test phenomenon showed that the method was sensitive, simple and easy to apply.

Key words: fresh milk, formaldehyde, inspection