食品科学 ›› 2010, Vol. 31 ›› Issue (6): 255-257.doi: 10.7506/spkx1002-6630-201006061

• 分析检测 • 上一篇    下一篇

微波消解ICP-AES法测定蕨麻中的微量元素

王建刚1,宋淑英2   

  1. 1.吉林化工学院分析测试中心 2.吉林化工学院化学与制药工程学院
  • 收稿日期:2009-07-09 修回日期:2009-10-22 出版日期:2010-03-15 发布日期:2010-12-29
  • 通讯作者: 王建刚 E-mail:wjg6670@126.com

Determination of Trace Elements in Potentilla anserina L. by Microwave Digestion-ICP-AES

WANG Jian-gang1,SONG Shu-ying2   

  1. (1. Analysis and Test Center, Jilin Institute of Chemical Technology, Jilin 132022, China;
    2. School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China)
  • Received:2009-07-09 Revised:2009-10-22 Online:2010-03-15 Published:2010-12-29
  • Contact: WANG Jian-gang1 E-mail:wjg6670@126.com

摘要:

采用微波消解技术- 电感耦合等离子体- 原子发射光谱法(ICP-AES)测定不同产地蕨麻中Ni、Mn、Ti,Cu、B、Ba、Fe、Zn、Na、Ca、Mg 和K 等多种微量元素的含量。结果显示,用HNO3-H2O2 为消解液微波消解处理样品,方法RSD 值均在5% 以下,加标回收率96.6%~113%;在优化实验条件下,各元素互不干扰,可实现多元素的同时测定;青海产蕨麻中微量元素含量较甘肃产蕨麻高,说明元素含量与蕨麻化学生态型相关。

关键词: 微波消解, 电感耦合等离子原子发射光谱法, 蕨麻, 微量元素

Abstract:

Samples of Potentilla anserina L. root from different growing areas were analyzed by microwave digestion-inductively coupled plasma-atomic emission spectrometry (ICP-AES) for contents of many trace elements including Ni, Mn, Ti, Cu, B, Ba, Fe, Zn, Na, Ca, Mg and K. A mixture of nitric acid and hydrogen peroxide was used for microwave digestion of samples. Results showed that the method exhibited a spike recovery range of 96.6% to 113%, with RSDs of less than 5%. Under optimized experimental conditions, a simultaneous determination of various trace elements was achieved without any interference among them. The sample from Qinghai province contained higher contents of trace elements than that from Gansu province. This indicates that trace element content in Potentilla anserina L. root is closely linked to chemotype. Our findings will provide useful evidences for the better exploration and utilization of Potentilla anserina L..

Key words: microwave digestion, ICP-AES, potentilla anserina L., trace elements

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