食品科学 ›› 1998, Vol. 19 ›› Issue (1): 44-45.

• 食品科学 • 上一篇    下一篇

反射光谱法测定食品中挥发性盐基氮

 张平, 阎宏涛   

  1. 西北大学化学系
  • 出版日期:1998-01-15 发布日期:2011-12-09

Determination of volitile basic hitrogen in food by Reflectance Spectroscopy

 ZHANG  Ping, YAN  Hong-Tao   

  • Online:1998-01-15 Published:2011-12-09

摘要: 采用反射光谱法测定鱼、肉食品中挥发性盐基氮。方法精密度(RSD)为2.6%(n=6),线性范围为1-8μg/ml,检出限为o.5μg/ml。用于猪肉和鱼鲜度检验,并且对鲜鱼做了连续监测,结果满意。

关键词: 食品分析, 挥发性盐基氮, 反射光谱法

Abstract: A method to determine the volatile basic nitrogen in fish and meat by reflectance spectroscopy is reported. The velative standard deriation for the determination 5 μg/ml N is 2. 6% (n = 6)The linear range and the detection limit are 1-8μg/ml, 0. 5μg/ml, respectively. This method has beenapplied in examination of fresh pork and fresh fish with satisfactory results.

Key words: Food analysis, Volatile basic nitrogen, Reflectance spectroscopy