食品科学 ›› 2005, Vol. 26 ›› Issue (9): 395-397.

• 分析检测 • 上一篇    下一篇

ICP-AES法测定干姜中多种微量元素的研究

 张胜帮, 郭玉生   

  1. 温州大学应用技术学院
  • 出版日期:2005-09-15 发布日期:2011-09-20

Study on Determination of Multiply Trace Elements in Zingiber Officinale Rosc by ICP-AES

 ZHANG  Sheng-Bang, GUO  Yu-Sheng   

  1. College of Applied Technology of Wenzhou University
  • Online:2005-09-15 Published:2011-09-20

摘要: 为了探讨干姜中多种微量元素的测定方法,本文采用湿法硝酸-双氧水进行消解,用电感耦合等离子体原子发射光谱法(ICP-AES)同时测定试样中钾、镁、铅、铜、铁、铬、锌、锰等多种微量元素的方法。其检出限为0.0004~0.0954μg/ml,变异系数为0.4%~4.9%,回收率除铅(114.6%)外,在91.8%~110.2%。结果令人满意。发现食品、中药两用的干姜中含有比较丰富的微量元素,微量元素在药膳中可能起到一定的药理作用,用ICP-AES测定干姜中微量元素以评价其药膳价值具有重要的意义。

关键词: ICP-AES, 干姜, HNO3-H2O2, 微量元素

Abstract: Determination of multiply trace elements in the food cooked with medicinal herbs Zingiber officinale Rosc was studied by ICP-AES after HNO3-H2O2 digestion. The average recovery of the method for K,Mg,Cu,Fe,Cr, Zn, Mn in Zingiber officinale Rosc were found to be 91.8%~110.2% and Pb be(114.6%),while RSD(n=10)is 0.4%~4.9% for the multiply trace elements in Zingiber officinale Rosc. The method was applied to the analysis of some practical samples and the results obtained were satisfactory. It is of important significance to assess the value of the food cooked with medicinal herbs by determination of multiply trace elements in Zingiber officinale Rosc with ICP-AES.

Key words: ICP-AES, Zingiber Officinale Rosc, HNO3-H2O2 digestion, trace elements