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首页> 外文期刊>International Journal of Electrochemical Science >Synthesis and Application of 2’-(5-Bromo-2- hydroxybenzylidene) Toluenesulfonohydrazide as a Shift Base Ionophore for Highly Selective Copper(II) Membrane Electrode
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Synthesis and Application of 2’-(5-Bromo-2- hydroxybenzylidene) Toluenesulfonohydrazide as a Shift Base Ionophore for Highly Selective Copper(II) Membrane Electrode

机译：2’-（5-溴-2-羟基亚苄基）甲苯磺酰肼作为高选择性铜（II）膜电极的移位碱离子体的合成及应用

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摘要

The construction of a potentiometric copper(II) ion electrode based on 2’-(5-bromo-2- hydroxybenzylidene) toluenesulfonohydrazide (5BrSALMeBSH) as an ionophore has been developed. The designed electrode having a different composition of poly(vinyl chloride) (PVC), plasticizers and ionophore showed that sensor with membrane composition 5BrSALMeBSH: PVC: DOP in the ratio of 7:40:56 (w/w) gave the best response. It exhibited a wide linear response with a Nernstian slope of 29.34 mV per decade over the concentration range of 1.0 x 10-5 – 1.0 x 10-1 M Cu(II) ions. Under the optimized conditions, the electrode has a detection limit of 3.98 x 10-6 M and the working pH range of 3.0 - 6.0 with response time less than the 20s. The proposed electrode is stable for about two months and exhibits good selectivity for Cu(II) ions over Zn2+, Co2+ , Ni2+, Pb2+ , Mg2+ , Ba2+ , Ca2+ , Cd 2+, Ce3+, K+, Na+. Designation of this easy and inexpensive electrode was used to determine a copper ion in wastewater samples, and the results obtained shown a sync relation with spectroscopy method which is AAS method conducted.
机译：已经开发了基于2'-（5-溴-2-羟基苄叉基）甲苯磺酰肼（5BrSALMeBSH）作为离子载体的电位铜（II）电极的构造。设计的电极具有不同的聚氯乙烯（PVC），增塑剂和离子载体组成，表明膜组成为5BrSALMeBSH：PVC：DOP且比例为7:40:56（w / w）的传感器可产生最佳响应。在1.0 x 10-5 – 1.0 x 10-1 M Cu（II）离子的浓度范围内，它表现出宽广的线性响应，每十年的Nernstian斜率为29.34 mV。在最佳条件下，电极的检出限为3.98 x 10-6 M，工作pH范围为3.0-6.0，响应时间小于20s。拟议的电极可稳定约两个月，并且对Zn2 +，Co2 +，Ni2 +，Pb2 +，Mg2 +，Ba2 +，Ca2 +，Cd 2 +，Ce3 +，K +，Na +的Cu（II）离子具有良好的选择性。使用这种简单且廉价的电极来确定废水样品中的铜离子，所得结果与进行AAS方法的光谱法显示出同步关系。

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