高等学校化学学报

高等学校化学学报

• 研究简报 • 上一篇    下一篇

同一极谱底液中7种元素的导数波及其在中药微量元素同时分析中的应用

张泰铭, 曹娟, 梁逸曾   

  1. 中南大学化学化工学院中药现代化研究中心, 长沙 410083
  • 收稿日期:2006-05-30 修回日期:1900-01-01 出版日期:2007-05-10 发布日期:2007-05-10
  • 通讯作者: 张泰铭

Derivative Waves of Seven Eelements in Identical Substrate Solution and Their Application to the Simultaneous Determination of the Microelements in Chinese Traditional Medicines

ZHANG Tai-Ming*, CAO Juan, LIANG Yi-Zeng   

  1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
  • Received:2006-05-30 Revised:1900-01-01 Online:2007-05-10 Published:2007-05-10
  • Contact: ZHANG Tai-Ming

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被引次数

5

摘要： 研究了由氨、氯化铵、明胶和抗坏血酸组成的底液中Cu(Ⅱ), Pb(Ⅱ), Cd(Ⅱ), Ni(Ⅱ), Zn(Ⅱ), Fe(Ⅱ)和Mn(Ⅱ)配合物吸附波的优化条件, 提出一种同时快速测定中药中这7种微量元素的新方法, 并将其用于实际样品的测定.

关键词: 导数极谱波, 微量元素, 中药

Abstract: Sensitive second derivative waves of Cu(Ⅱ), Pb(Ⅱ), Cd(Ⅱ), Ni(Ⅱ), Zn(Ⅱ), Fe(Ⅱ) and Mn(Ⅱ) can form in the substrate solution(pH=9.26) containing NH3, NH4Cl, gelatin and ascorbic acid, and the peak potentials of the polarogram of the seven ions are about -0.48, -0.63, -0.79, -1.04, -1.28, -1.44 and -1.60 V, respectively. Therefore, a new method for simultaneous determination of the seven micro-elements in aqueous solutions was developed.The operation of the method is rapid, simple and convenient. The method was used successfully in rapid and simultaneous determination of 7 microelements in Chinese Traditional Medicines.

Key words: Derivative polarographic wave, Microelement, Chinese traditional medicines

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