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双水杨醛缩乙二胺合铜(Ⅱ)席夫碱金属配合物的合成及应用

徐刚*,董文丽,任凌燕,刘火安   

  1. (重庆科技学院安全工程学院 重庆 401331)
  • 收稿日期:2012-01-16 修回日期:2012-02-23 出版日期:2013-01-10 发布日期:2013-01-10
  • 通讯作者: 徐刚，副教授; Tel:023-65023928; Fax:023-65023098; E-mail:xgxyt@163.com; 研究方向：分析测试技术
  • 基金资助:
    国家国际科技合作专项(2009DFA91450)资助

Synthesis and Application Study of Copper(Ⅱ) Schiff Base Complex with Ethylene-diamine-bis-(salicylaldehyde)

XU Gang*, DONG Wenli, REN Lingyan, LIU Huoan   

  1. (College of Safety Engineering，Chongqing University of Science and Technology,Chongqing 401331，China)
  • Received:2012-01-16 Revised:2012-02-23 Published:2013-01-10 Online:2013-01-10

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1945

被引次数

9 | 4

摘要： 合成了双水杨醛缩乙二胺合铜(Ⅱ)[Cu(Ⅱ)-EDBSAD]席夫碱金属配合物，并以该配合物为中性载体制备PVC膜电极，该电极对SCN-具有优良的电位响应特性，在pH=5.5磷酸盐缓冲溶液中，SCN-浓度在1.0×10-1～1.0×10-7 mol/L之间具有能斯特响应，校准曲线方程为Ｅ(mV)＝-51.75lg cSCN--255.29，检测下限为5.6×10-8 mol/L。 将电极用于废水中硫氰酸盐含量的测定，结果与高效液相色谱法基本一致。

关键词: 铜(Ⅱ) 配合物, 离子选择电极, 硫氰酸根, 废水

Abstract: A copper(Ⅱ) Schiff base complex with ethylene-diamine-bis-(salicylaldehyde)[Cu(Ⅱ)-EDBSAD] was synthesized and a poly vinyl chloride(PVC) membrane electrode with the complex as neutral carrier was prepared. The electrode displays a preferential potentiometric response to SCN- and exhibits near Nernst response for SCN- within a wide concentration range(1.0×10-1～1.0×10-7 mol/L) with calibration curve equation of E(mV)＝-51.75lg cSCN--255.29, and a detection limit of 5.6×10-8 mol/L in pH=5.5 phosphate buffer solution at 25 ℃. This electrode was applied to the determination of SCN- in waste water and the obtained result was in good agreement with those of high-performance liquid chromatography method.

Key words: Cu(Ⅱ) complex, ion-selective electrode, SCN&, ndash, waste water

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