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双呋喃甲醛Schiff碱金属铜(Ⅱ)配合物为载体的高选择性硫氰酸根离子电极
引用本文:吴庆,孙志勇,柴雅琴,袁若.双呋喃甲醛Schiff碱金属铜(Ⅱ)配合物为载体的高选择性硫氰酸根离子电极[J].遵义师范学院学报,2005,7(3):46-49.
作者姓名:吴庆  孙志勇  柴雅琴  袁若
作者单位:1. 遵义医学院,基础化学教研室,贵州,遵义,563003
2. 西南师范大学化学化工学院,重庆,400715
摘    要:报道了二醋酸双(呋喃甲醛)缩邻苯二胺铜(Ⅱ)为载体的PVC膜电极.该电极对硫氰酸根离子(SCN-)具有高的电位选择性和灵敏度,并呈现反Hofmeister选择性行为.采用交流阻抗技术和紫外可见光谱技术初步研究了电极的响应机理,结果表明配合物中心金属原子的结构以及载体本身的结构与电极的响应行为之间有非常密切的构效关系.将制得的电极初步应用于实际废水样品分析,结果与HPLC法一致.

关 键 词:二醋酸双(呋喃甲醛)缩邻苯二胺铜(Ⅱ)  呋喃甲醛Schiff碱  离子选择性电极  硫氰酸根
文章编号:1009-3583(2005)03-0046-04
修稿时间:2005年3月24日

Study on bis-Furaldhyde Schiff Base Cupper(Ⅱ) Metallic Complex as Carriers for the Preparation of Highly Selective Thiocyanate Electrode
WU Qing,SUN Zhi-yong,Chai Ya-qin,Yuan Ruo.Study on bis-Furaldhyde Schiff Base Cupper(Ⅱ) Metallic Complex as Carriers for the Preparation of Highly Selective Thiocyanate Electrode[J].Journal of Zunyi Normal College,2005,7(3):46-49.
Authors:WU Qing  SUN Zhi-yong  Chai Ya-qin  Yuan Ruo
Abstract:In this paper, a new highly selective and sensitive thiocyanate electrode based on N,N'- bis-(furaldhyde) -1,2-phenylendiamine cupper(II) complexCu(II)-BFAPDA] as neutral carrier is described, which displays an anti-Hofineister selectivity pattern. The response mechanism is discussed in view of the a.c. impedance technique and the UV spectroscopy technique. These deviations result from the direct interaction between the central metal and the analyte ion and steric effect associated with the structure of the carrier. The electrode can be applied to waste water analysis and the result obtained is fair agreement with the result given by HPLC methods.
Keywords:N  N'-bis-(furaldhyde) - 1  2-phenylendiamine cupper (II) complex  furaldhyde schiff base  ion-selective electrode  thiocyanate
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